Arborvitae
Q.

My arborvitae have bag worms on them. I have removed all of them and keep watching for any more. Is there anything I can put in

Zone Schaumburg Ill 60194 | Anonymous added on August 24, 2019 | Answered

the soil to protect the bush? Why does this happen, and how can I avoid this in the future?

A.
A.Answers to this queston: Add Answer
GKH_Susan
Certified GKH Gardening Expert
Answered on August 26, 2019

I looked at several references and didn't find any that suggested using a systemic insecticide, but rather treating with a spray in May or June. These articles should help:

https://www.gardeningknowhow.com/plant-problems/pests/insects/treatment-bagworms.htm

https://extension.psu.edu/bagworm

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