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.