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African Black Beetle

African Black Beetle

Pests

Description

The African Black Beetle is on of the many insects that can damage our lawns, making the grass appear to need water and there may be large brown patches. 

The larvae have creamy curled bodies and a brown head. (smaller and less curled than the Christmas Beetle). 

They feed on roots of grasses and other plants during the warmer months causing the plants to wither and die.

The adult is a black shiny beetle about 12mm. 

During spring the adult feeds on the crown of the plants severing the shoots from the roots killing the plant. 

When you examine the dead grass you will see that the dead thatch comes away in hand-fulls.

Affects

Turf, various vegetable crops including potatoes, beetroot, tomatoes, cabbages and cauliflowers.

Solution

Soaking the lawn with soapy water will bring the larvae and adults to the surface when they can then be collected by hand.

Dig over vegetable bed and remove by hand.

When treating a lawn contact insecticide can be used in spring when the larvae are near the surface. 

Baythroid Lawn and Grub Insecticide, Chemspray Chlorban and GK Grubkil are all good products

There is no chemical control against larvae that are eating your other plants.

Note: Many chemicals sold can be harmful to other insects as well as some animals and in some cases, humans. Always read the manufacturers instructions and warnings before you begin and use as directed.

Ants

Ants

Pests

Description

Ants are attracted to sweet things inside and outside the house.  

In the garden they feed on 'HoneyDew' a sweet syrup excreted by aphids, soft scales and mealy bugs.  They so love the honey dew that they will protect the insects who produce it which allows those insects to continue to damage the plant.

Ants can be very useful in the garden, they feed on other pests (fleas, caterpillars, termites), and dead insects.  

Ants usually nest in soil, next to buildings under patios and along the sides of paths.   They also build nests next to plants that harbour Honey dew producing insects or plants with either ripening and/or rotting fruit or floral nectar.

Affects

m

Solution

If the ants nest appears to be under your paving then a kettle of boiling water poured into the gaps between the paving will help.  Take care when carrying boiling water to keep it away from children and pets.

Keep ants away from infested plants by painting the tree trunks (if stems are sensitive make collar) with sticky substances such as Tanglefoot. 

Check the sticky bands regularly and stir in dead ants and debris so the surface remains sticky.

Make sure that the branches are trimmed to keep them away from other plants and structures to prevent the ants finding an alternate route.

Baits are a key tool in managing ants and they contain a mix of sweet food and insecticide. The worker ants take the mix back to feed the ants in the nest. 

There are various types of baits, in liquid, gel or solid form, one of the least toxic contains boric acid.

Aphids

Aphids

Pests

Description

Small oval shaped pale green, yellowish or black insects approx 2-3mm. They cluster on the tender new growth of plants and the underside of leaves, flowers and buds. They suck the sap and cause a loss of vigour, leaf distortion and prevent fruit or flowers from setting. They produce a sweety sticky liquid which encourages ants and sooty mould. They can also carry some viral diseases.

Affects

Roses and other Ornamentals, vegetables and some fruit trees. Can be seen all year in most areas of Australia but numbers increase rapidly as the weather becomes warmer.

Solution

Blast them off with a jet of water, spray with soapy water,remove weeds from around plant or squash them between your fingers. Can also make your own natural insecticide made with garlic and cayenne pepper. Control the ants to allow natural predators to take over.Larvae of the green lacewing are wide-ranging predators that will attack and eat almost any small insects or eggs. Lacewing larvae are particularly effective at controlling aphids and can consume 60 aphids in an hour. These are available commercially. Spray with a systemic or contact insecticide depending on plant and where the aphids are feeding. Systemic Insecticides:-Confidor, Folimat Contact Insecticides: Pyrethrum.Note: Many chemicals sold can be harmful to other insects as well as some animals and in some cases, humans. Confidor is know to be harmful to bees and should only be used on plants that are not in flower. Always read the manufacturers instructions and warnings before you begin and use as directed.

Apple Moth

Apple Moth

Pests

Description

A light brown moth - the female is lighter in colour again. Light brown apple moth larvae feed under the stem and on unexposed areas of the fruit leaving the fruit scarred. The larvae also bore into ripe fruit.Photo: Wikimedia Commons - author Goldfinger820

Affects

Apples and citrus.

Solution

Pest Oil works very well. although it is petroleum based, it is the most effective and organic in that it is not absorbed into the plant, but just spreads a film over the insects and suffocates them. the oil then naturally biodegrades.Note: Many chemicals sold can be harmful to other insects as well as some animals and in some cases, humans. Always read the manufacturers instructions and warnings before you begin and use as directed.

Azalea Lace Bug

Azalea Lace Bug

Pests

Description

The adult bug is black and about 4mm in length with lace-like wings, the younger nymphal stages are more yellow in colour and have dark spines. The bugs hatch and live on the underside of the leaves where they suck sap. The upper surface of the leaves have a mottled appearance, if heavily infested the leaves can look grey. The underside of the leaves will show lots of tiny droppings. Once a leaf is damage it cannot be reversed.

Affects

Ornamentals, azaleas, rhododendrons, viburnums, flowering quince, crabapple and cotoneaster.

Solution

The best option is to use a systemic insecticide. It is important to note that Confidor should NOT be used whilst the Azalea are in flower. Confidor is harmful to bees, it affects the homing abilities.Note: Many chemicals sold can be harmful to other insects as well as some animals and in some cases, humans. Always read the manufacturers instructions and warnings before you begin and use as directed.

Azalea Leaf Miner

Azalea Leaf Miner

Pests

Description

Azalea Leaf Miner is a small caterpillar that tunnels inside the new soft Azalea leaves. It moves to the side of the leaves where it hides away under the curled leaf and feeds under the webbing.You will see curled edges and brown patches on the leaves. There will also be a certain number of dead leaves

Affects

Azalea and occasionally Rhododendron

Solution

Prune off infected leaves Use a systemic insecticide - note that Confidor has been shown to be hazardous to bees and should not be used when the plant is in flower.

Bean Fly

Bean Fly

Pests

Description

The tiny black flies lay their eggs of the bean leaves. Inspection of the leaves will show tiny yellow spots where the eggs have been laid. When the larvae hatch they burrow into leaf stalks and stem causing them to become swollen, the new plants wilt and fall over; stalks break off higher up in more mature plants.Photo: Merle Shepard, Gerald R.Carner, and P.A.C Ooi, Insects and their Natural Enemies Associated with Vegetables and Soybean in Southeast Asia, Bugwood.org

Affects

All French and Climbing Beans.

Solution

Inspect regularly and remove damaged leaves as soon as they appear. Aim not to plant beans every year.Use a contact chemical insecticide each week from planting to flowering. The aim being to prevent any eggs being laid on the leaves. Can use a pyrethrum based insecticide like Pyrethrum or a Tau-fluvalinate based insectide like Mavrik.Note: Many chemicals sold can be harmful to other insects as well as some animals and in some cases, humans. Always read the manufacturers instructions and warnings before you begin and use as directed.

Blackfly

Blackfly

Pests

Description

This is a black form of aphid. See aphid for more details

Affects

Many plants including Citrus

Solution

See aphidsNote: Many chemicals sold can be harmful to other insects as well as some animals and in some cases, humans. Confidor is know to be harmful to bees and should only be used on plants that are not in flower. Always read the manufacturers instructions and warnings before you begin and use as directed.

Bronze Orange Bug

Bronze Orange Bug

Pests

Description

When young they are thin green and transparent in later stages of development they become pink and then orange with a black spot, the adults are bronze to dark brown and winged. They produce foul smelling secretions. These bugs suck the sap from the plant they prefer the new growth and the stalks of the fruit and flowers. This leads to necrosis of new shoots and fruit and flowers fall.

Affects

Citrus

Solution

The adults can be removed by hand and drop in bucket of soapy water ( wear gloves the insects leave a yellow/brown stain) - It is easier to remove them when they are still at the orange nymph stage as they are easier to see. Some people recommend removal using a vacuum cleaner, but don't use your best cleaner!The best time for chemical control is during winter /early spring whilst the bugs are in an early nymph stage, thin, green and fragile. Use Pest Oil to spray tree, aiming for the underside of leaves where the young hide. Note: Many chemicals sold can be harmful to other insects as well as some animals and in some cases, humans. Always read the manufacturers instructions and warnings before you begin and use as directed.

Brown Lace Lerp

Brown Lace Lerp

Pests

Description

The Brown Lace Lerp feeds on Eucalyptus trees. Insect is a small psyllid that lives under a small shell-like cover called a Lerp. It is a sap sucker and attaches itself to the leaf blade. The leaves then develop yellow blocky patches that turn brown. The leaves gradually turn completely brown and fall. In severe cases the tree can look as if it has been scorched by fire.

Affects

All Eucalyptus particularly Eucalyptus robusta. Stressed trees are more susceptible.

Solution

Treatment of the tree will depend on its size. If the tree is very large then reduce the stress and improve the health of the tree. If the tree is small then Pest Oils, contact or Systemic are possible option. Of course will also need to improve the tree's health at the same time.If you cant save the tree and need to remove then replace it with a resistant species

Bryobia Mite

Bryobia Mite

Pests

Description

Eggs laid on the rough surfaces of bark and in fork of branches in winter. Mites hatch in spring, for first few days are bright red but gradually turn brown. The mites feed on the upper surface of the new growth and give the leaves a mottled appearance. The new leaves can fail to grow.

Affects

Apples Pears and some stoned fruit trees.

Solution

The best time to control these mite is before they hatch. During winter spray the trees with White Oil - pay special attention to rough areas of bark and the forks in tree. If application was missed or unsuccessful use a miticide as soon as mites are detected, try wettable sulphur.Note: Many chemicals sold can be harmful to other insects as well as some animals and in some cases, humans. Always read the manufacturers instructions and warnings before you begin and use as directed.

Budworms

Budworms

Pests

Description

There are many different species of Budworm and these tend to be species specific. The adult moth is an undistinguished grey brown and only seen at night. It is the larvae of this pest that causes all the damage to flowers, flower buds and fruit. The larvae chews its way through the soft plant tissue and leaves behind tell-tale tunnels and dying flowers or fruit. The larvae varies in colour depending on the host plant but all have smooth bodies with light coloured stripes along the body.These insects have a short life cycle with many generations each year and consequently can cause much damage.Photo credit: Jeff Hahn University of Minnasota extension

Affects

A wide range of plants including tomatoes, sweetcorn, beans, gardenia, roses and carnations

Solution

This can be a difficult pest to control because once the larvae has tunneled into the flower or bud it is protected from insecticides. If there are only a few they can be removed by hand. Fortunately there is an effective biological control, however it needs to be used every 7-10 days over a several weeks to catch the larvae before they start tunnelling. This control is called Dipel it is a pathogenic biological control, the bacteria cause paralysis of the larvae's digestive track and stops it eating and dies. This will not cause any damage to any other insects or animals. Always read the manufacturers instructions and warnings before you begin and use as directed.

Cabbage Aphids

Cabbage Aphids

Pests

Description

These very destructive aphids are greyish green with a whitish-grey covering of wax which repels water. They multiply quickly in the crevices close to the stem making the leaves turn turn yellow. Severe infestations can limit growth and even kill younger plants.

Affects

All cabbages, cauliflower, broccoli. They will be most prevalent after a warm winter.

Solution

If a small infestation then blast them out with a fine jet of water or squash between fingertips. Undersow with clover which will deter them getting a foothold. If thats too late then spray with Confidor. Two sprays a week apart are required and ensure you get into every little crevice. Note: Many chemicals sold can be harmful to other insects as well as some animals and in some cases, humans. Confidor is know to be harmful to bees and should only be used on plants that are not in flower or next to plants that are in flower. Always read the manufacturers instructions and warnings before you begin and use as directed.

Cabbage Moth

Cabbage Moth

Pests

Description

This moth (plutella xylostella) has brown mottled wings, the larvae of this moth are green and about 12mm in length and can damage a wide variety of crops. The larvae (caterpillars) tunnel into the leaves and chew holes leaving a fine clear layer of leaf (window pane effect) The larvae move towards the youngest and softest leaves as the plant grows.

Affects

Cabbage, onions, beets, marigolds cucumbers carnations, lettuce, tomato, radish, rhubarb, potato and spinach.

Solution

Organic /non Chemical controls work well against this insect. Dipel is a biological insecticide that damages the gut cells of the larvae to stops them feeding; this is sprayed over crops. Derris dust is a natural insecticide and can be dusted over infected plants.Always read the manufacturers instructions and warnings before you begin and use as directed. Chemical options would be to use a Tau-fluvalinate based insecticide like Mavrik.Note: Many chemicals sold can be harmful to other insects as well as some animals and in some cases, humans. Always read the manufacturers instructions and warnings before you begin and use as directed.

Cabbage White Butterfly

Cabbage White Butterfly

Pests

Description

The cabbage white butterfly (pieris rapae) has creamy white wings approximately 32–47 mm in width and distinctive a black spot. It lays eggs that emerge as caterpillars that are yellowish green and approx 30mm in length. The larvae tend to feed on the outer leaves of the plants at night. Visible signs will be holes in the leaves and dropping at the base of the leaves of older plants; in younger plants they are eat all the new growth and destroy them.

Affects

Cabbages,cauliflowers, broccoli, kale, radish and mustard crops. Also can be found of nasturtians, stocks and wallflowers.

Solution

Use Organic/ non-chemical alternatives to control these insects. DiPel should be sprayed on plants at first signs of caterpillars feeding. Dipel is a biological insecticide that damages the gut cells of the larvae to stops them feeding.Always read the manufacturers instructions and warnings before you begin and use as directed. Chemical options would be to use a Tau-fluvalinate based insecticide like Mavrik. Note: Many chemicals sold can be harmful to other insects as well as some animals and in some cases, humans. Always read the manufacturers instructions and warnings before you begin and use as directed.

Caterpillars

Caterpillars

Pests

Description

In general they are bright green and feed on the underside of leaves by anchoring their butt and then waving around in a circle to munch. They can grow to 4cms in length.

Affects

Affects all brassicas like Cabbage, Pak Choi, Cauliflower, etc + tomato, beans, peas, mint, dahlia, geranium and many more.

Solution

If only a few they can be removed by hand. Alternatively, use organic / non chemical options, DiPel or Derris Dust. Dipel is a biological insecticide that damages the gut cells of the larvae to stops them feeding. Derris Dust - Controls most chewing and sucking insect pests, including caterpillars, on vegetables and flowers. It is particularly effective against white butterfly.Note: Many chemicals sold can be harmful to other insects as well as some animals and in some cases, humans. Always read the manufacturers instructions and warnings before you begin and use as directed.

Christmas Beetle

Christmas Beetle

Pests

Description

The larvae has a white curled shaped body ( often referred to as the white curl grub). The larvae live in the soil and feed on roots particularly grasses and pot plants. The adult beetle has a brown metallic sheen about 25mm in length. They are active between November and January, they leave a sawtooth pattern on the leaves. Not normally a problem unless the ratio of grass land to eucalyptus trees in very high; in those situations they have been known to destroy all the leaves.

Affects

Adults - Eucalytptus Larvae - roots

Solution

Remove by hand and leave for the birds to enjoy. Throw a damp hessian cloth over the lawn at night, in the morning the grubs congregating under the cloth can be removed. When digging your veggie patch or transferring compost it is worth removing the grubs whenever you see them. You can pour soapy water over the lawn to bring them to the surface. Adults tend to have moved on by the time the devastion is noticed and spraying is them too late.

Citrus Gall Wasp

Citrus Gall Wasp

Pests

Description

Evidence of these pest can be seen as galls ( swellings) on the newer stems, they become obvious in early summer.The galls are the plants response to the small gall wasp larvae feeding and then pupating within the stems.In Sept and October the adult wasps emerge through holes in the gall and lay their eggs into soft young twigs. The cycle begins again.In some areas Citrus Gall Wasp is a Proclaimed Pest and must be controlled or growers face heavy fines.

Affects

All varieties of cultivated citrus

Solution

The only form of control is to remove and destroy the infected branches and twigs before the 31st August. This date is chosen to ensure that the branches are removed before any of the wasps are able to hatch. The galls need to be burnt or placed in a black plastic bag in the sun for several days to ensure the wasps have killed. Do not put them in your compost or dispose of until you have killed the adults.

Citrus Leaf Miner

Citrus Leaf Miner

Pests

Description

Citrus Leaf Miner as the name indicates is a pest that affects Citrus Trees. The young leaves become become distorted and the older leaves show tell tale sliver trails across the under and or upper surface.The trails are caused by a small larvae that hatch within the leaf and form tunnels by chewing through the inside of leaf. They then pupate under the curled edges of the leaf. The adult female emerges, mates and lays her eggs in the soft new leaves and so the cycle continues several times during the warmer summer months

Affects

Citrus

Solution

The best solution is to stop the adult moth laying eggs into the new leaves. Spraying the new growth with Pest Oil will prevent the adult landing on the leaf and laying her eggs. It is only necessary to spray the new leaves as the adult cannot make a hole in the tough older leaves. You will need to spray the new growth regularly during the main growing season.Note: Many chemicals sold can be harmful to other insects as well as some animals and in some cases, humans. Always read the manufacturers instructions and warnings before you begin and use as directed.

Codling Moth

Codling Moth

Pests

Description

The moth is small greyish with grey and copper stripes. The eggs are laid the fruit or leaves of fruit trees particularly the apple tree. When the larvae (often known as the apple worm) hatches it burrows into the fruit where is feeds for about 3 weeks before leaving to pupate elsewhere. The pest is responsible for major damage to apple crops.

Affects

Apple trees also some pear and walnut trees

Solution

Removal and destruction of fallen infested fruit. Attach cardboard strips around tree and main branches to encourage larvae to pupate in these areas - these can then be removed.Codling Moths traps are available these are used more to monitor the insects and decide the best time to spray. Total exclusion netting can be used. Fruit protection bags have been developed to protect individual fruit. Trichogramma carverae are minute wasps that parasitise the moth eggs and have been successful in controlling moth populations. These are available commercially.Chemical control is required from when the blossoms fall to when the fruit is harvested, spraying every 10 to 14 days. Lebaycid used to be the chemical of choice but as of 1st November 2012 it is now illegal to use this chemical. Folimat is still available. Note: Many chemicals sold can be harmful to other insects as well as some animals and in some cases, humans. Always read the manufacturers instructions and warnings before you begin and use as directed.

Cotton or Hibiscus Harlequin Bug

Cotton or Hibiscus Harlequin Bug

Pests

Description

Conspicuous black and reddish orange bug around 12mm long. The insects have a waxy coat which protects them from sprays. They are sap suckers and cause new growth to wilt and die.Both male and female beetles have a wonderful metallic sheen, the females tends to be more orange while the males tend to be predominantly blue with red and orange markings. They are of the order Hemiptera, all stages have piercing and sucking mouthparts. Damage tends to be to young shoots.They are also known as "stink bugs" as they have scent glands which produce a bad smell which, when it is emitted by one bug, triggers others in the group, multiplying the bad smell.

Affects

The bugs feed on many hibiscus species as well as cultivated cotton.

Solution

Remove by hand and place in bucket of soapy water. Spray bugs with soapy water (breaks down the waxy coat) - best in middle of the day whilst the bugs are enjoying the heat of the sun.Chemical sprays that have proved effective Yates Confidor. It is now known that Confidor is harmful to bees and should only be used on plants that are not in flower or next to plants that are in flower.Note: Many chemicals sold can be harmful to other insects as well as some animals and in some cases, humans. Always read the manufacturers instructions and warnings before you begin and use as directed.

Cottony Pigface Scale

Cottony Pigface Scale

Pests

Description

Cottony Pigface scale is one of many types of soft scale. We tend not to notice this scale until we see the large white cottony sac attached to the leaves and stems. The sac sticky and full of eggs the brown looking disc at the top is actually the female insect. They don't seem to do too much damage if kept under control.

Affects

Affects both Pigface and Iceplants

Solution

They are very easy to remove by hand.

Cup Moth - Spitfires, Chinese Junks

Cup Moth - Spitfires, Chinese Junks

Pests

Description

It is the caterpillars of the Cup Moth that cause two problems, one to us and the other to the tree. Firstly, the young larvae feed in groups and can skeleton the upper leaf surface. Secondly, two pairs of spots at each end of their body contain stinging hairs that shoot out when the larvae is disturbed and can cause skin irritations and welts. The larvae are easily recognisable and quite pretty, they tend to be green in colour with bright colour patterns on the body and saw tooth edge. When irritated the stinging hairs shoot our from the spots and the larvae can look like a Chinese festival dragon. The pupa can be mistaken for gum nuts sitting along a twigs or small branches.Photo - Project Noah

Affects

Angophora costata, some species of Eucalyptus, Melaleucas, Prunus and Apples

Solution

Can be removed by hand - but make sure you wear gloves and wear protective clothing.If smaller trees are affected then they can be sprayed with Dipel or a Contact insecticide. Larger trees are harder to treat and in most cases can just be left.

Curl Grubs

Curl Grubs

Pests

Description

Curl grubs is a term used to describe the larva of various beetles including the Christmas Beetle. They are between 2-3cm long and curl forming a C shape. They have an orangey brown head, white body with 3 pairs of legs and a brown abdomen. The grubs love decaying matter and soft roots. They hatch in late spring burrow into the soil and start eating the soft new roots. They are found in the soil and compost heaps.

Affects

All plants with soft new roots are affected, flowers, vegetables, lawns and in severe cases can affect shrubs and trees.Flowers and vegetable plants will start to wither, look stressed from lack of water and continue to do so no matter how much they are watered.Lawns will start to develop browny yellow and may start to die. Can be found in pot plants purchased from nurseries.

Solution

In beds: Before planting remove by hand any grubs found in the soil or compost. Depending on the state of the plant it will have to be thrown it away or after checking for grubs moved to another area. Then clear the area of curl grubs, soft roots and other plants before soaking the bed and leaving it for several weeks to break the cycle before planting again.Tea Tree Oil and Neem Oil have been used successfully - follow the instruction carefully but remember this will also affect the good bugs in the soil.In Lawns: It is harder to see them. Water lawn with biodegradable detergent and within 10mins the grubs will come to the surface, they can be removed by hand or left for the birds to eat. Alternatively if the area is only small, throw a wet hessian sack over the affected area, leave over night, in the morning the grubs can be collected and destroyed. Grubs like the soil to be dry so keep the lawn well watered.

Earwig

Earwig

Pests

Description

Earwigs are mostly scavengers, they live in crevices or decaying debris or just under the soil surface. The adults have shiney brown bodies with curved pincers at the end of their abdomen. They tend to feed during the night and spend the day in moist crevices.

Affects

Dahlias, zinias, buddleia, lettuce, cauliflower, corn, potatoes, roses plus others

Solution

Earwig traps can be made by crumpling damp newspaper in an upturned flower pot and placing it on pole close to the plants it has been feeding on. Each morning empty the earwigs into soapy water. Alternatively, leave a damp newspaper on the ground close to the plants and empty each morning into soapy water. Unless they are destroying your crops there seems little need to use chemicals but if you do then Baythroid is registered for the control of earwigs - do not spray directly on plant but around the base.Note: Many chemicals sold can be harmful to other insects as well as some animals and in some cases, humans. Always read the manufacturers instructions and warnings before you begin and use as directed.

Fig Tree Leaf Beetle - Poneridia semipullata

Fig Tree Leaf Beetle - Poneridia semipullata

Pests

Description

This as the name suggests is a pest of fig trees. Both larvae and adult can cause damage to the leaves. The larvae are responsible for most of the damage on the new leaves and when they feed in groups as they often do they can destroy the new growth very quickly. The adult beetles are about 10mm in length, brown in colour with a black dot on the thorax and the base of the wing covers. The adults tend to be more solitary and eat the edges of both new and old leaves leaving a scalloped pattern to the leaves.

Affects

Leaves of fig trees in spring and summer

Solution

The damage may not look very pretty but the insects are unlikely to kill the tree. Encourage birds into your garden as they love feeding on the larvae. If the tree is small, the insects can be removed by hand or squirted off with water. In severe cases chemicals can be used - speak to your local horticulturalist for the best option for your case.

Fruit Fly

Fruit Fly

Pests

Description

There are two major types in Australia, the Mediterranean and the Queensland Fruit Fly. They are considered serious pests and must be controlled. Eggs are laid by the adult fly via a thin tube (ovipostor) which pierces the fruit skin. On apple and tomato skins pin prick size dark spots indicate that eggs have been laid inside. When the larvae hatch they burrow towards the centre of the fruit to feed making the fruit inedible. When they are ready to pupate they leave the fruit and burrow into the soil from where they emerge in the warmer months.The Queensland fruit fly is about 7mm long and has a reddish brown body with yellow markings and found along Eastern states of Australia.The Mediterranean Fruit Fly is about 3.5-5mm in length, the body is yellowish with a brown tinge, the abdomen in encircled with two light rings is found in Western Australia

Affects

Tomatoes, eggplant, capsicum, passionfruit, olives, oranges, stone fruit, apples, pears and avocados

Solution

For low levels of fruit flies, beer or sugar solution traps may be all you need.Prune trees regularly to a height that makes fruit picking easy.Use Fruit Fly traps to show presence of Fruit Fly and when to start spraying. It is important to spray the fruit before eggs have been laid, once in fruit the skin offers protection to the developing larvae. Total exclusion netting can be used. Fruit protection bags have been developed to protect individual fruit. Options : Yates Natures Way Fruit Fly Control (Non Chemical). Lebaycid used to be the chemical of choice but as of 1st November 2012 it is now illegal to use this chemical. Note: Many chemicals sold can be harmful to other insects as well as some animals and in some cases, humans. Always read the manufacturers instructions and warnings before you begin and use as directed.

Fruit Tree Moth Borer

Fruit Tree Moth Borer

Pests

Description

Fruit Tee Moth Borer despite its name affects many species including, Acacias, Banksia and Crepe Myrtles as well as stone fruit trees.Borers tend to affect older or stressed trees.The borer feeds on the external parts of the tree causing damage to the bark and branches particularly at the branch junctions. The damaged area is covered with a sawdust-like pad (Fras) consisting of chewed wood gum, webbing and excrement. The larvae feeds underneath this eating down to the Xylem and Phloem affecting the movement of water and nutrients up the plant and food down to the roots. In severe cases they can cut all movement (Ringbark) leading to death of a branch or the whole tree.The tunnels created by the borer are used as resting place during the day, they come out at night to feed.

Affects

Acacias, Banksia and Crepe Myrtles as well as stone fruit trees

Solution

Prune off damaged branches. Improve the health of tree, water and fertilise (if tree is an Australian native use low phosphate fertliser)Prize out with a fine wire, blast out with a jet of water or WD40. If the tree is badly damaged removal may be your only option.

Grasshoppers

Grasshoppers

Pests

Description

Large green insects that eat tender young twigs and leaves. They have chewing mouthparts and feed on on all plants but are particularly to cereals and grasses. In garden situations they are usually not a problems but cause problems when they swarm, eat everything and devastate large areas.

Affects

Any plant

Solution

Unless populations are high, grasshopper numbers are kept in check by natural predators. Netting over plants can prevent them getting to the plants . Neem Oil can be used as a deterrent. Chemicals sprays can be used as a last resort.Yates Lebaycid is registered for the control of grasshoppers.Note: Many chemicals sold can be harmful to other insects as well as some animals and in some cases, humans. Always read the manufacturers instructions and warnings before you begin and use as directed.

Grey Cabbage Aphid

Grey Cabbage Aphid

Pests

Description

Also known as the Brassica Aphid and Mealy Cabbage Aphid. This insect is a common cause of problems on all plants of the Brassica family. It occurs throughout the year but tends to be worst in spring and autumn. The adult aphid has two forms both winged and wingless so when you first come across this pest the plant appears to be hosting two different insects.Sticky dense grey patches appear on the leaves, flower head and stalks. These patches are colonies of aphids, including the mature grey wingless adults covered in a waxy white powder , nymphs and dried moults discarded as the nymphs mature. In winter you may also see eggs, the females lay eggs in winter but produce live young during the warmer months. When you knock the leave the small white winged aphids tend to fly away. The ash-like substance found collecting amongst the leaves consists of the dried moults, in severe cases the layers can be quite thick.Aphids damage the plant in two ways. Firstly by sucking sap from the leaves causing them to be deformed and weaken the plant. Secondly by carrying a virus that can stunt and deform the plant.

Affects

All Brassicas including Cabbages, cauliflowers, brocolli. Can be seen all year in most areas of Australia but numbers increase rapidly as the weather becomes warmer.

Solution

Blast them off with a jet of water, spray with soapy water,remove weeds from around plant or squash them between your fingers. Can also make your own natural insecticide made with garlic and cayenne pepper. Control the ants to allow natural predators to take over.In the warmer months biological controls are available. Larvae of the green lacewing are wide-ranging predators that will attack and eat almost any small insects or eggs. Lacewing larvae are particularly effective at controlling aphids and can consume 60 aphids in an hour. These are available commercially. Spray with a systemic or contact insecticide depending on plant and where the aphids are feeding. Systemic Insecticides:-Confidor, Folimat Contact Insecticides: Pyrethrum.Plants affected by virus should be removed and destroyed.Confidor is know to be harmful to bees and should only be used on plants that are not in flower or next to plants that are in flower.

Gum Leaf Skeletoniser

Gum Leaf Skeletoniser

Pests

Description

The larvae of the Gum Leaf Skeletoniser is an unusual looking caterpillar. It is yellowy brown and covered with fine hairs but it is the hornlike projection on its head that makes it so distinctive. The projection is make of all the head capsules discarded eat time it moultsThe caterpillars feed in groups starting on the leaf surface, then eat the blade to the veins and eventually the whole leaf. A badly affected tree may have a burnt appearance. The hairs can cause severe skin irritations, careful choice of trees is needed in high traffic public areas.Photo: Dept of Agriculture and Fisheries - Queensland

Affects

Certain Eucalyptus including Eucalytpus pilularis, Eucalyptus saligna and Lophostemon confertus

Solution

Smaller trees can be sprayed with a contact insecticide mixed with a wetting agent. For larger trees improve the health.

Hard Scale

Hard Scale

Pests

Description

Small shell-like creatures that attach themselves to leaves or stems like limpets where they suck sap and weaken the plant. The best time to control these pest is during the mobile stage "crawling stage' immediately after they hatched, they remain mobile long enough to find a suitable attachment area along the viens of leaves or stems. They then start to suck the sap and develop a protective cover. They cause much damage to the leaves and stems and in severe cases can lead to the death of the plant.

Affects

There are many different types of hard scale, some attach a wide range of plants but others are more specific ie Rose Scale, Tea Scale, White Palm Scale and White Louse Scale.

Solution

Observe plant carefully for signs of crawlers and then spray with Pest Oil. Chilocorus ladybird beetles are important predators of many species of scale insects. These are available commercially.If you would rather not use chemicals, small infestations can be removed by hand either rub the scale off leaves or smooth stems or brush vigorously with an old toothbrush to remove scale from older branches. Remove and destroy heavily infested branches.If you prefer to use chemicals then once the scale is attached and feeding the most effective method of control is to use a mix of Pest Oil and Pyrethrum ie Yates Scale Gun. Apply every 2-3 weeks.Note: Many chemicals sold can be harmful to other insects as well as some animals and in some cases, humans. Always read the manufacturers instructions and warnings before you begin and use as directed.

Hibiscus Flower Beetle

Hibiscus Flower Beetle

Pests

Description

These tiny black beetles are oval, about 3mm in length are often found in the hibiscus flowers. They chew holes in the petals but are not believed to be responsible for holes in the leaves. Can cause buds to drop.

Affects

Hibiscus and magnolias

Solution

Remove beetles by hand. Prune badly infested flowers. Collect and destroy all fallen flowers and buds. If you cannot see any sign of beetles, the flowers may be dropping for other non pest related reasons, maybe the ground is too dry or there has been a sudden cold period during spring. In which case watering and feeding the plant will help.Chemical sprays have proved effective. Yates Confidor is no longer an option as it is now known that Confidor is harmful to bees and should not be used when a plant is in flower or next to plants that are in flower. Note: Many chemicals sold can be harmful to other insects as well as some animals and in some cases, humans. Always read the manufacturers instructions and warnings before you begin and use as directed.

Large Citrus Butterfly or Orchard Swallowtail Butterfly

Large Citrus Butterfly or Orchard Swallowtail Butterfly

Pests

Description

Butterfly lays its eggs on citrus branches. The larvae migrate to the leaves where they start to gorge themselves, they are able to eat through leaves very quickly so need to be removed as soon as they are seen. The larvae look like bird droppings when first hatched but as they feed on the leaves they grow fat and become olive green in colour with diagonal brown stripes edged in white. When disturbed it emits a foul odour.

Affects

All citrus and Mexican Orange Blossom (Choisya ternata) and Eristomen.

Solution

The larvae pupate after 2-3 days and cause only a small amount of damage to the leaves. Leave them to pupate and enjoy the butterflies when they emerge.

Lawn Armyworm

Lawn Armyworm

Pests

Description

It is the caterpillar of the Lawn Armyworm that causes the damage to lawns during the night. A lawn that looked great the previous evening may have developed areas of dieback overnight.The caterpillars feed in groups, chewing the leaf blades all the way to the stem and scalping the lawn. The numbers tend to build up over summer and cause the most damage in autumn.

Affects

lawns

Solution

Place a blanket across area at night and take up in the morning , remove and destroy all caterpillars hiding under blanket. Spray the unaffected healthy grass with Dipel. This biological control, once ingested it will kill all hairless caterpillars. It is safe for all beneficial insects and mammals. It is only active for a few days so several applications may be necessary.Chemical spray options: Cyfluthrin based product like Yates Baythroid.Note: Many chemicals sold can be harmful to other insects as well as some animals and in some cases, humans. Always read the manufacturers instructions and warnings before you begin and use as directed.

Leaf Hoppers

Leaf Hoppers

Pests

Description

The term leaf hoppers covers many different species that vary in size (3 to 15mm) and in colour (grey to green to yellow) Both nymphs and adults jump and the adults also fly. They are sucking insects and feed on the sap of plant

Affects

They affect a wide range of plants however some hoppers are species specific ie The rose leafhopper; the potato leafhopper ; the aster or six-spotted leafhopper spreads the aster yellow virus to woody plants like periwinke and Thunbergia species

Solution

There is usually no need to control these as the damage tends to be slight. In cases of severe infestation and damage the non chemical option would be Success Naturalyte Insect Control(derived from naturally occurring beneficial soil bacteria. Pyrethrum based insecticides can also be used.Note: Many chemicals sold can be harmful to other insects as well as some animals and in some cases, humans. Always read the manufacturers instructions and warnings before you begin and use as directed.

Leaf Miners

Leaf Miners

Pests

Description

Leaf miner is the term to describe the larvae of insects that burrow into the leaf and feed from within it. The adults may be beetles, wasps, sawflies, moths and flies. The tunnels can be seen on the surface of the leaves as lighter colour trails. Leaf miners are classified by which layer of the leaves they mine, this will also depend where the damage is visible. Full depth mining can be seen on both sides, upper or lower cell damage can only be seen from the appropriate side.There are many types of leaf miner and each is specific to a species of plant.

Affects

Affects Citrus, azalea, camellia, rhododendron, cineraria, dahlia, marigold and some veggies.

Solution

Leaf miner are difficult to control because the larvae tunnel within the leaf and are protected from contact insectides.In many cases the plants are not severely affected, keep the plant healthy, water well and fertilise and remove any infected leaves.There is a commercially available parasitic wasp that will kill leaf miner in the mine.Note: Many chemicals sold can be harmful to other insects as well as some animals and in some cases, humans. Always read the manufacturers instructions and warnings before you begin and use as directed.

Longicorn Beetle

Longicorn Beetle

Pests

Description

It is the larvae of the Longicorn Beetle that causes the damage. The creamy coloured larvae is a borer and feeds on the sapwood inside the tree and can remain inside the tree for up to 7 years. The borer tends to affect stressed or old trees. It tunnels into the trunks and stems of woody plants and can internally Ringbark the tree (Cut the movement of water and nutrients up the tree and sugars down the tree) leading to death.The tree that was already stressed may become more stressed and there will be more dieback, more leaf drop, yellowing of leaves. The exit holes are quite distinctive, they are oval in shape and there may be some Fras ( exceta) around the hole.

Affects

Older and stressed trees

Solution

If the tree does not look too unwell then try to improve the tree's health. If the tree looks very sick the only option will be to remove it.

Loopers

Loopers

Pests

Description

These group of caterpillars are so named because of the loop they make with their bodies as they crawl across the leaf. They feed on the underneath side of the leaves and leave a layer of top cells intact; this give a window pane look on the leaves.

Affects

All broad leaved plants including many vegetables including cabbages, cauliflowers, tomatoes; also some natives banksias and wattles.

Solution

If the damage is slight remove the caterpillars by hand. If more severe then spray with Dipel(biological insecticide that damages the gut cells of the larvae to stops them feeding)Trichogramma pretiosum is a minute parasite wasp the parasitises the eggs. It is available commercially.Note: Always read the manufacturers instructions and warnings before you begin and use as directed.

Mealy Bug

Mealy Bug

Pests

Description

Flat, oval insects around 6mm long that are covered in a powdery wax and have a fringe of filaments around the edge. They are suck sapping insects and produce a honeydew on which a sooty mould grows. They are however difficult to kill as the hide in crevices on the plant, around buds and even below ground around the roots.

Affects

Wide range of plants including trees and shrubs, succulents, palms, ferns and indoor plants.

Solution

Remove bugs by hand. Prune away infected branches, if a pot plant is too badly infected it may be better to just throw it away.Control the ants to allow natural predators to eat the bugs. Green Lacewing are good at controlling Mealybugs. Cryptolaemus are Australian native ladybird beetles. They are very efficient natural enemies of mealybugs.Can use Pest Oil or an Omethoate based insecticide like Folimat.Note: Many chemicals sold can be harmful to other insects as well as some animals and in some cases, humans. Always read the manufacturers instructions and warnings before you begin and use as directed.

Millipede

Millipede

Pests

Description

The adults have a segmented hard shell and many legs, when threatened they coil up. They feed mainly on decaying organic matter but they will eat the fleshy roots of plants and rotting fruit.

Affects

Ornamental plants

Solution

Remove by Hand. Clear up any damp areas with rotting organic material.Methiocarb based pesticide (Baysol) has been shown to be effective against millipedes.Note: Many chemicals sold can be harmful to other insects as well as some animals and in some cases, humans. Always read the manufacturers instructions and warnings before you begin and use as directed.

Mole Crickets

Mole Crickets

Pests

Description

Mole crickets tend not to be a major problem in domestic gardens. They have chewing mouthparts but it is not these that cause the damage to the lawn. They have spend most of their time underground in deep tunnels and the damage is caused as they tunnel under the lawn and break the roots from the shoots. The key indicators that you have Mole Crickets will be wiggly lines or patches of yellow grass across the lawn and the presence of holes in the lawn.

Affects

Turf Vegetable and flower crops

Solution

They tend not to be a huge problem. Remove by hand There is a commercially available contact insecticide, this is very toxic and not recommended.

Pimple Psyllids

Pimple Psyllids

Pests

Description

Pimple Psyllids are small sap sucking insects. They feed on the underside of new leaves. They are quite easy to identify as they feed red lumps 'galls' appear on the leaf's upper surface above the indentation on the lower surface containing the 'scale like' insect. Although they look unsightly they don't seem to affect the overall health of the plant.

Affects

All Lilly Pilly. Particularly susceptible are Syzygium coolminianum, Syzygium australe, Syzygium paniulatum .

Solution

Plant species that seem to be more resistant to psyllid attacks ie Acmena smithii and Syszgium luehmannii. Watch the new growth and spray with a systemic insecticide like Confidor but only when the plant is not in flower.Systemic insecticide sprays have proved effective. Yates Confidor is no longer recommended as it is now known that Confidor is harmful to bees and should only be used when a plant is NOT in flower. Note: Many chemicals sold can be harmful to other insects as well as some animals and in some cases, humans. Always read the manufacturers instructions and warnings before you begin and use as directed.

Pink Wax Scale

Pink Wax Scale

Pests

Description

Pink Wax Scale adults looks like small greyish pink turtles is found on the midribs and lateral veins and occasionally soft stems. Pink Wax Scale is a soft scale and produces a thick sweet secreta 'Honey Dew' that encourages both ants and sooty mold. The young nymphs 'Crawlers' are small red and mobile - this is the most vulnerable stage of the Pink Wax Scale life cycle - the ants herd and protect them from any predators.

Affects

Wide range of plants - Syzigium (Lilly Pilly), Ivy, Holly, ferns, citrus, figs and Pittosporum. Tends to be worse in spring and autumn. Plants are weakened in two ways firstly because the scale sucks sap from the leaves reducing the energy producing chlorophyll and secondly the thick layer of sooty mold prevents the sunlight reaching the leaf and allowing the plants to photosynthesize.

Solution

The solution chosen will depend on the size of the infestation and the affect it is having on the plant. If there are only few present then the scale can be wiped off. At the crawler stage Pest Oils can be used and 'TangleFoot' to form a barrier against climbing insects including the ants. Adults - if there are too many to wipe off then use a systemic insecticide - it may take 2-3 applications

Potato Tuber Moth

Potato Tuber Moth

Pests

Description

The moth is light brown to grey and around 7mm long, it is seldom seen because it is very small and is active at night. It is the larvae (caterpillar) of the moth that causes all the damage which eat through the leaves and stalks and tunnel into the tubers The larvae are pink to green and 2cms long with a dark brown head.

Affects

Potatoes, tomatoes and other members of the Solanaceae family

Solution

Remove infected leaves. Ensure soil is high in nutrients and banked up around the plant. Remove all weeds. Harvest early and make sure all potatoes are taken from the soil. Derris Dust - active ingredient Rotenone is made from natural root extract (toxic only to fish) Spray with Omethoate based insecticide like FolimatNote: Many chemicals sold can be harmful to other insects as well as some animals and in some cases, humans. Always read the manufacturers instructions and warnings before you begin and use as directed.

Rabbits (Feral)

Rabbits (Feral)

Pests

Description

In some areas feral rabbits are at plague proportions, yet in others its a rarity. In parts of Sydney it can be a big problem and your salad and brassicas will be their prime target as well as other juicy border plants.

Solution

If you haven't got your garden fenced then the only option is bird netting (and a letter to the local council to organise humane culling)

Red Scale or California Red Scale

Red Scale or California Red Scale

Pests

Description

Red scale is a hard scale, so it doesn't produce honeydew and all its related problems. It does cause serious damage to the tree. The small reddish-brown round scale can be seen on the leaves and tend to be accompanied by yellowing of the area around the scale. It young trees the scale can cause serious damage and on occasions can lead to death.The young nymphs (crawlers) are the only mobile stage and also the most susceptible. Once the nymph starts to feed it becomes stationery and builds a protective coating over its body.

Affects

Citrus - leaves, fruits, twigs and branches. Can also affect

Solution

Monitor the new growth and at the first sign of crawlers spray with Pest Oil. Check regularly during October and March.It is possible to purchase Parasitic wasps to devour the insects. Aphytis are tiny yellow wasps they lay their eggs under the scale cover, on hatching the larvae feed on the red scale.Small infestations can be removed by hand either rub the scale off leaves or smooth stems or brush vigorously with an old toothbrush to remove scale from older branches. Remove and destroy heavily infested branches.NOTE: Many chemicals sold can be harmful to other insects as well as some animals and in some cases, humans. Always read the manufacturers instructions and warnings before you begin and use as directed.

Root Knot - Nematodes

Root Knot - Nematodes

Pests

Description

Root Knot is caused by microscopic nematode worms.These tiny worms penetrate the roots and start feeding. Their saliva stimulates the plants defences leading to cell division in that part of the root and the formation of knobbly lumps on the roots called 'Galls'.The galls interfere with the movement of water through the roots. The above ground parts of the plant show signs of water stress: slower growth, yellowing leaves and wilting especially in hot weather eventually leading to death of the plant.

Affects

Wide variety of plants including potatoes, tomatoes, carrots, hibiscus and roses.

Solution

Remove and destroy all infected plants.Leave the area fallow for up 1 year (aim to starve the nematodes)Add organic matter that will contain 'good' nematodes that will feed on the 'bad onesPlant crops that are resistant to nematodes - Brassicas ( ie cabbage, cauliflower) onions and corn Plant flowers that nematodes find toxic. Marigolds are one such plant however these are not toxic to all nematodes.There are nematicides available but these are very toxic and not recommended for domestic use.

Rose Scale

Rose Scale

Pests

Description

Rose scale can be seen on the older stems of roses. The female scale are small, round and white whilst the male scale are smaller more like desiccated coconut in appearance.Over summer their population increases very quickly and it not treated, stems can soon become white with scale. Rose scale is a sap sucking insect it takes goodness from the plant causing the plant to become stunted and stressed.

Affects

Roses, members of the raspberry family

Solution

It is important to control hard scales as their numbers can increase in number rapidly during the warmer months and stress the plant.Spray the stems with Lime Sulphur during winter, this will cause the scale to dry out and die. During the warmer months spray with Pest Oil every 10-14 days, the aim is to kill the young 'Crawler' nymphs as they leave the protection of the parent scale and migrate to a new attachment site on the plant.

Slater and Pill Bugs

Slater and Pill Bugs

Pests

Description

Small grey to dark grey segmented body about 10-15mm in length. The most obvious difference is that Pill Bugs roll into a ball when in danger. They live in moist areas under pots stones and wood piles and in compost. They chew young shoots and soft fruit near the ground.

Affects

Young tender plants.

Solution

They tend not to be a huge problem and can often be kept in control but cleaning up damp area and removing any hiding places. Spread lime or Napthalene flakes or spray with Eucalyptus. Note: Always read the manufacturers instructions and warnings before you begin and use as directed.

Slugs & Snails

Slugs & Snails

Pests

Description

Slugs and snails produce a soft mucus to help them slide on their soft foot. Slugs lost their protective shell during the evolutionary process. They tend to feed at night and prefer damp conditions. They cause a lot of damage to soft new growth particularly green leafed vegetables growing close to the ground. They leave ragged holes in the leaves and can completely remove seedlings. They can also move up the trunk of some trees and feed on the foliage. There is also a species of carnivorous snail that eats plant eating slugs and snails. The shells of these are flatter and smaller that the usual garden snail. They wont control all problems with snails but they will help, so try not to destroy these.

Affects

Leafy vegetables, seedlings and also Citrus.

Solution

Remove by hand at night. Set snail traps, various attractants can be used including beer. Various things can be used to create a barrier. The snails soft foot doesn't like travelling over anything that is gritty so sawdust, egg shells, sand and coffee grinds all make good barriers. Copper tape makes a good barrier, the snails get an electric shock when they try to cross the copper tape. Multiguard is an iron based snail and slug killer which can be used in areas withdogs, cats, birds and native fauna. The iron breaks down to a soil nutrient that won't harm earthworms.Baysol contains methiocarb and is available in a pellet form, it is effective but is toxic to some animals.Note: Many chemicals sold can be harmful to other insects as well as some animals and in some cases, humans. Always read the manufacturers instructions and warnings before you begin and use as directed.

Small Citrus Butterfly or Dainty Swallowtail

Small Citrus Butterfly or Dainty Swallowtail

Pests

Description

The adult Small Citrus Butterfly are similar but smaller than the Large Citrus Butterfly, both male and female adults are the same size black, grey and white with red and blue markings.The larvae however lives for longer and does more damage to the leaves so does need controlling. The larvae has a brown body with three rows of orange-yellow dots along the sides and 2 red projection behind its head. Photo: kathyw.org

Affects

Citrus plus members of Rutaceae family including Choisya ternata and Eriostemon myoporoides.

Solution

The larvae can be removed by hand if infestation is small.Biological controls are available the most effective of these is Dipel. It comes in packets as dried bacteria which are reconstituted with water as per instructions. When ingested by the caterpillars it causes paralysis of the digestive track, the caterpillar stops feeding and after a few days dies.Note: Many chemicals sold can be harmful to other insects as well as some animals and in some cases, humans. Always read the manufacturers instructions and warnings before you begin and use as directed.

Soft Scale

Soft Scale

Pests

Description

There are many types of soft scale. They are not as harmful to plants as hard scale. Like hard scale they have a mobile stage 'crawlers' directly after hatching and it is during this stage that pest control will be most successful. The scale become sedentary and start to feed. Soft scale excrete a soft sicky liquid 'honeydew'. This sweet liquid attracts ants that then protect the crawlers from predators and fungi like sooty mold

Affects

Many soft scale of species specific.

Solution

Control the ants to allow the natural predators to control the scale.The 'crawlers' hatch in late March/April and in November. The leaves may appear to be covered with brown dust. At this stage spray with soapy water or pest oil. Once the scale are sedentary and feeding, a mix of systemic insecticide and pest oil seem to be most effective. Try Yates Scale Gun which contains a mix of oil and pyrethrins.Note: Many chemicals sold can be harmful to other insects as well as some animals and in some cases, humans. Always read the manufacturers instructions and warnings before you begin and use as directed.

Spined Citrus Bug

Spined Citrus Bug

Pests

Description

(Biprorulus bibax) feeds on the fruits of lemons, mandarins and oranges, causing drying and brown staining of the fruit segments, gumming on the skin and premature fruit drop. Although native to Australia, it only emerged as a major citrus pest in the late 1980s.

Affects

Inland regions of southern New South Wales, Victoria and South Australia. Damage is mainly confined to lemons and mandarins, but instances of damage to oranges have been reported.

Solution

Manual removal is recommended for domestic gardens - gloved finger tips or a pair of pliers will do the job perfectly well.

Steel Blue Sawflies

Steel Blue Sawflies

Pests

Description

The sawfly larvae are capable of defoliating young saplings and small eucalyptus. They start at the bottom and work outwards and upwards. They do not tend to cause major problems to fully grown trees.The larvae are covered with short white hairs, their bodies turn from brown to deep blue/ black as they get older. When under threat they regurgitate a smelly yellow fluid (eucalyptus oil stored in a sack in their gut). The larvae can be seen congregating on the branches during the day and at night they feed in groups. They pupate in mass cocoons in the ground at the base of the tree and emerge in early autumn. The adult females have golden wings and dark coloured bodies, they don't feed, they use a 'sawbench' under the abdomen to lay her eggs in a slit in the leaves closer to the ground.

Affects

Eucalypts -in Eastern States of Australia including Eucalyptus blakeyi, Eucalyptus melliodora, Eucalyptus viminalis, Eucalyptus pauciflora.

Solution

If the tree is not badly infested then the larvae can be removed by hand and the branches carrying larvae can be pruned off.

Sugar Lerp

Sugar Lerp

Pests

Description

Sugar Lerp is a scale insect with a sugary like domed protective covering. It is a sap sucking insect and feeds on the leaves. Lerps tend to be found on stressed trees and can lead to further loss of vigour and death.The major problem is that birds love and feed on the sugary covering. In making replacement lerps the insects use even more sap leading to further stress for the tree.

Affects

Eucalyptus trees that are stressed. Seen on Eucalyptus scoparia when it is grown in Sydney where is it much more humid than the dry inner areas of NSW

Solution

The solution will depend on the size of the tree If the tree is small then infested branches can be removed and once it is established the lerps are still present then a systemic insecticide could be used. At the same time improve the health of the tree. If the tree is large then removing infested branches and the use of a systemic insecticide is impractical. Improve the health of tree if this doesn't seem to be working then remove tree and think about planting a resistant species in its place.Note: Many chemicals sold can be harmful to other insects as well as some animals and in some cases, humans. Always read the manufacturers instructions and warnings before you begin and use as directed.

Tea Scale or Camellia Scale

Tea Scale or Camellia Scale

Pests

Description

This is a small brown scale found on the underside of leaves of the Camellia family.This tends to affect older leaves, the scale causes yellow spots on the upper leaf surface. In more severe infestations the scale can be seen on both sides of the leaves and this can cause leaf distortion, leaf drop and die back of new shoots. Scale builds up in spring and is worst during summer.The adult scale insects is immobile and lives protected by the hard scale. The eggs hatch under the scale and are released to move around looking for a good spot to built their own protective cover. It is at this stage is the young 'crawlers' are most vunerable and easiest to kill.

Affects

Camellia

Solution

In light infestations the scale can be scraped off by hand. Use a contact insecticide or Pest Oil at the crawler stage - need to apply every 2-3 weeks to ensure all crawlers have been killed

Thrips

Thrips

Pests

Description

There are many species of thrip and the damage they cause can vary from minor to serious depending on species. The adults are 1.2mm in length and can vary in colour from cream/yellow to black and brown, they have hairy wings, the nymphal stages tend to be lighter in colour. Thrips feed by rasping the underside of the leaf and sucking the sap. Affected leaves have a silvering or mottling effect and new growth can be badly distorted. These insects have a very short life cycle - when the conditions are right the population can double within 7days.

Affects

Viburnum, Fuchsia, Dahlia and Gladiolicabbage, cucumber, beans, melon, turnip, beet, tomato, pea, onion, fruit trees some shrubs.

Solution

Thrips do not like hot sunny conditions.Monitor with Sticky Blue Monitoring padsSpray the plant with soapy water Montdorensis is an Australian predatory mite that feeds on thrips and is available commercially. Use a systemic insecticide either Confidor (active ingredient Imidacloprid) or Pyrethrum. Note that Confidor is harmful to bees, do not use Confidor when the plant is flowering.Note: Many chemicals sold can be harmful to other insects as well as some animals and in some cases, humans. Always read the manufacturers instructions and warnings before you begin and use as directed.

Tomato Caterpillar (Budworms)

Tomato Caterpillar (Budworms)

Pests

Description

A greeny brown caterpillar that is 3cms long and striped on he back with black. It eats flower buds and fruit.photo: Dr. Paul McLeod, Department of Entomology University of Arkansas, Fayetteville, Arkansas

Affects

tomatoes

Solution

Remove caterpillars by hand. Non-chemical options are to spray the leaves and flowers with Dipel or Spinosad (Yates Success Naturalyte). Reapply weekly and also after rain. Yates also have a product designed for tomato pests and diseases. Tomato dust contains sulphur against tomato mites, copper against any fungi and spinosad against insects.Note: Always read the manufacturers instructions and warnings before you begin and use as directed.

Tomato Mite

Tomato Mite

Pests

Description

These mites are very small and tend not to be noticed until the plant starts to look diseased. Stems and leaf stalks become smooth and bronzed and the leaves shrivel and die progressively from the bottom up. photo: Western University, London Ontario Canada

Affects

Tomatoes, eggplant, potatoes and other members of the solanaceae family.

Solution

Lime sulphur can be used to control these mite. Yates also have a product designed for tomato pests and diseases. Tomato dust contains sulphur against tomato mites, copper against any fungi and spinosad against insects.Note: Always read the manufacturers instructions and warnings before you begin and use as directed.

Two-spotted Spider Mite (Red Spider Mite)

Two-spotted Spider Mite (Red Spider Mite)

Pests

Description

The adults are about .4mm in length. During summer the bodies are pale green with dark spots on either side, in winter they become red all over. They tend to be found on the underside of leaves but can move onto the upper surface, blossoms and developing fruit. They damage the leaves by rasping the surface and then sucking out the sap which causes the leaves to become have a yellow mottling or silvering. A tell tale sign that you have spider mite and not another sucking insect if the presence of fine webbing over the leaves.

Affects

Affects ornamentals, Apple, peach, plum, grape, citrus, strawberry, melon, tomato, artichoke, maize, onion, bean, pea, cucumber, marrow and celery amongst others.

Solution

Remove badly affected leaves, keep the area clear of weeds, water the plants from above.Organic option is the use of commercially available predatory mites eg Phtyoseiulus persimillis. Sulphur can be dusted on the plants before the weather gets too hot.Note: Always read the manufacturers instructions and warnings before you begin and use as directed.

Vegetable Weevil

Vegetable Weevil

Pests

Description

The adult weevil is grey brown 8mm long with a grey V on its back. These emerge in spring and feed on leaves at night until summer when they hibernate until autumn. The eggs are laid in autumn and the larvae appear in winter; the larvae live in the soil during the day and come out at night to feed. They start to feed on leaves at the base of the plant but gradually more up the plant chewing at stems and leaves. They cause most damage to seedlings where they can retard growth and even kill the plant.

Affects

Brassicas, fleshy root crops and wide range of annuals and weeds.

Solution

Keep area clear of all weeds and other organic litter.Practice crop rotation - alternate plantings with unaffected crops like bean and peas.GK Derris Dust Note: Always read the manufacturers instructions and warnings before you begin and use as directed.

Vine Leaf Blister Mite

Vine Leaf Blister Mite

Pests

Description

These mites are very small about .2mm are not visable to the naked eye. The first sign of these mites is the blister-like swellings on the upper surface and corresponding dips in the underside full of tiny hairs.

Affects

Vines

Solution

Lime Sulphur spray has been shown to help control these mites.Note: Always read the manufacturers instructions and warnings before you begin and use as directed.

Vine Moth

Vine Moth

Pests

Description

These are large and colourful (black with yellow lines and red spots)with long white hairs over the body. The larvae cause damage by chewing the vine leaves and leaving large holes.

Affects

Vines

Solution

There are two non chemical options:Spray with Dipel as soon as caterpillars are seen. Respray weekly and after rain.Spray with a Spinosad based product ie Yates Success NaturalyteNote: Always read the manufacturers instructions and warnings before you begin and use as directed.

White Fly

White Fly

Pests

Description

The young whitefly is pale yellow while the adult is white and they collect in large numbers under leaves. As sap suckers they facilitate the spreading of disease systemically, though the loss of sap and their toxic saliva also cause rapid loss of vigour in the plant. They also secrete a honeydew which encourages the formation of sooty mould.

Affects

Tomatoes, beans, cucumber and most greenhouse vegetables and ornamentals.

Solution

Hose them off in the first instance , spray with soapy water or Pest OilMontdorensis is an Australian predatory mite that feeds on thrips, whitefly, other small insects and mites is available commercially.Systemic chemical sprays also suitable are Confidor, Pyrethrum. Note the Confidor is known to be harmful to bees and should not be used on or around plants that are in flower.Note: Many chemicals sold can be harmful to other insects as well as some animals and in some cases, humans. Always read the manufacturers instructions and warnings before you begin and use as directed.

White Louse Scale

White Louse Scale

Pests

Description

Small white scales that look like desiccated coconut and are scattered over the bark of citrus plants sucking sap. This is a species of hard scale, the scales spread along branches and trunk causing severe damage if not kepted in check.

Affects

Citrus

Solution

Spray with Lime sulphur during winter.Note: Always read the manufacturers instructions and warnings before you begin and use as directed.

White Wax Scale

White Wax Scale

Pests

Description

These scales are of the soft variety in that they produce 'honeydew' which encourages ants and sooty mold. The scales are white and once sessile and tend to be found on twig where they suck the sap protected by the white scale.

Affects

A wide range of plants including Citrus, Gardenia and Syzigium (illypilly)

Solution

Remove infested branches and rub off any small areas of scale. If removing by hand, wear gloves as the scale leave an orange stain. It is best to remove the scale in early spring before the eggs hatch and the crawlers leave the protection of the white scale. Spray with White Oil whilst the nymphs are still mobile in late spring. Once the scale have are stationery and protected by the cover a mix of oil and pyrethrums have shown to work.Note: Many chemicals sold can be harmful to other insects as well as some animals and in some cases, humans. Always read the manufacturers instructions and warnings before you begin and use as directed.