Hi this is Peggy. Sorry you have bag worms. We always cut off the limb with the bag worms and burned it. Here are some other helpful ways to get rid of them. How to Get Rid of Bagworms: 14 Steps (with Pictures) - wikiHow
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Jun 14, 2019 - How to Get Rid of Bagworms. Bagworms are moths that feed on shrubs and trees during their larval stage. They love deciduous trees, ...
Add 2 tbsp. of dishwashing liquid to 1 gallon of water.
Mix together thoroughly.
Pour the dishwashing solution into a garden sprayer.
Find a good solid stick that is long enough to reach the bag.
Puncture the side of the bagworm bag with the pointy end of the stick.
Spray the mix into and onto the bag.
If you can remove the branches with the bag worms, cut them off and either burn them or put them into a plastic bag and spray them in there. Tie tightly and dispose of in the trash.
Hopefully this link will help you.
We got rid of bagworms simply by pulling the off and putting in a plastic zip lock bag-to the trash they go. Helped immensely, not many back the next year.
Cut off the branches they are on and tie them up in a trash bag and throw them away.