bag worm treatment and timetable

Asked July 31, 2014, 10:10 AM EDT

I noticed a bad bagworm infestation on a number of arborvitie that appear to be killing several large shrus. Can I still treat them and is there a great product?

Kent County Delaware

1 Response

Chemical treatment for bagworm is usually recommended between June 15 and July 15. After July 15, the insects are fairly well protected inside the bags. You can handpick bags or if there are too many to make that feasible, you need to treat with an insecticide that has residual action like Orthene.