Evergreen Bagworm

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Evergreen Bagworm:

An Evergreen Bagworm is the larva of a common moth known as the Evergreen Bag Moth. This worm can grow up to 6 centimeters and is tapered and open on both ends. Evergreen Bagworm’s grow into large moths that can be mistaken for bee’s. They live off of trees and shrubs by feeding on the foliage and if left unchecked can pose serious problems to the health of the plant. Egg’s hatch between April and June, and the when the larvae is mature sometime around august it begins to wrap a silk lining around branches where it pupates. At times the silk lining can be so strong that it kills branches of the tree. Weeks later, adult males transform into moths and seek females for mating.

What We Are Seeing:

Our technicians are seeing a moderate level of Evergreen Bagworm’s in the field on evergreens, pines, and other trees and shrubs. When infestations are spotted they are usually severe and pose a real threat to tree they inhabit.  

What to look For:

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When checking to see if you have a problem with Evergreen Bagworm’s you are looking for cocoons and cocoon like clumps on your tree. 

What can I do?

If spotted early, Evergreen Bagworm’s are relatively easy to control. The best way to protect your landscape from these and other insect infestations to to maintain a tree and shrub insect and disease program. Treating for these insects preventatively is the best way to ensure your landscape remains strong and vibrant all season long.

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