The Q&A Archives: bagworms

Question: what do you spray on bagworms to get rid of them?

Answer: Bacillus thuringiensis (Bt), sold under the trade name Dipel and Thuricide, is a great weapon against bagworms. It is a bacterium that acts as a stomach poison, so expect the bagworms to continue feeding for a time. It also works against other critters like gypsy moths, tent caterpillars, webworms, tomato hornworms, and other moth larvae). It is a great organic remedy that will not harm the birds, bees, animals and other insects in the garden. Since the pests must consume it for it to be effective, wait until you see them.

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