Insect Pest Control
Q.

fall webworms

Zone Pennsylvania | rlr5338 added on August 7, 2015 | Answered

Do fall webworms cause sufficient damage to trees to make killing them necessary? I know they damage the part where the nest is but are they a real problem? They are on an apple tree. Are the insecticides safe for fruit? The tree needs to be cut back anyway, so if we cut off the damaged part will it be fine?

A.
A.Answers to this queston: Add Answer
Nikki
Certified GKH Gardening Expert
Answered on August 10, 2015

Small nests don't seem to do any significant damage but trees that are covered in them may suffer from defoliation. This article might help: https://www.gardeningknowhow.com/plant-problems/pests/insects/controlling-fall-webworms.htm

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