Worms coming from flowering bush

Worms emerging from large soft brown cocoons on my yellow flowering bush. I have a yellow flowering bush, I’m sorry I don’t know the name of it, but it is covered with brown cocoons. The cocoons look similar to a rolled dryed leaf with bits of debris on them but, when touched, they feel soft almost fleshy. They are brown in color and are plump. There is a hole on top of the cocoons, by the branch their suspended from, and every so often a black headed worm sticks its head out. Sometimes the cocoons move, swaying back and forth because the worm moves around inside. I have seen the worm (smooth and black) drag the cocoon behind him, if fallen from the bush. What kind of worm is this? Is it a moth or a pest? They really give me the creeps and I don’t know if I should kill them or if they are something I should leave be. Thanks for any info!

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1 Comment To "Worms coming from flowering bush"

#1 Comment By Downtoearthdigs On 08/27/2015 @ 2:08 am

Most caterpillars can be controlled with a treatment of Bt or Bacillus thuringiensis.
Here are some links for you.

https://www.gardeningknowhow.com/ornamental/shrubs/azalea/common-azalea-problems.htm ^[1]
https://www.gardeningknowhow.com/plant-problems/pests/insects/prevent-caterpillars.htm ^[2]
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/using-bacillus-thuringiensis.htm ^[3]

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[1] https://www.gardeningknowhow.com/ornamental/shrubs/azalea/common-azalea-problems.htm: https://www.gardeningknowhow.com/ornamental/shrubs/azalea/common-azalea-problems.htm

[2] https://www.gardeningknowhow.com/plant-problems/pests/insects/prevent-caterpillars.htm: https://www.gardeningknowhow.com/plant-problems/pests/insects/prevent-caterpillars.htm

[3] https://www.gardeningknowhow.com/plant-problems/pests/pesticides/using-bacillus-thuringiensis.htm: https://www.gardeningknowhow.com/plant-problems/pests/pesticides/using-bacillus-thuringiensis.htm

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