Hi, I have a lilly pilly hedge vor privacy in my front yard. 2 years ago I had a gardener cut the hedge and he introduced a little green bug that has been eating all the new growth on the hedge I have used everything on bunnings shelf without success even richgrow bug killa and now it has changed colour and groes only in spots.I have watered and sprayed with seasol,seasol gold and native fertiliser but my hedge is dying can anybody please help?