How do you get rid of Witchetty Grubs from Gum Trees?
I was cuting the grass around them yesterday and am now covered in diabolically itching red raised welts. Most of the trees have nests near the base which look like soft brown hessian or cotton. I want to get in and prune these trees, but not while the itchy grubs are there. I live in far north Qld.
Baythroid Lawn Grub and Garden Insecticide is registered to control sawfly larvae. The active ingredient of Cyfluthrin is a fast acting contact insecticide. Spray the foliage thoroughly when pests are first seen and spray again if they reappear. For best results, spray in the morning when there is little wind. This product is safe to spray on all plant types, including native plants.
Answered: 30 Apr, 2011