What do you do about silkworms on crepe myrtles? How to get rid of them and prevent them from coming back?
Silkworms on Crepe Myrtles
Certified GKH Gardening Expert
Cut off branches infested with webworms and throw the branches in the trash. For trees that are not tall or overly infested, this a good method of removing the nests.
Spray the nests with Bacillus thuringiensis. These bacteria kill certain caterpillars without harming people, other insects or the environment. Open the nest with a stick and saturate the nest with the spray. Also, spray the area and leaves around the nest.