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Q&A - Webworms On Birch Trees

Question:
Webworms love to eat my birch trees. They are not on any list of affected trees that I can find. I do all I can to control them with imidacloprid. Why do webworms keep coming back to an unpopular tree species? Do the worms or moths leave a pheromone that attracts them to a previous food source? They don't go after anything else that I have growing.

Answer:
We step in to help a viewer who's birch trees are plagued by fall webworms. In order to help stem the tide of these unsightly critters retired UT extension agent Mike D. recommends BT in order to avoid harming your beneficials. Also, even though birch trees are not on a list of webworm affected trees the worms will still eat them if they are there.

Related Resources:
Fall Webworm
Fall Webworm
The rise and fall of the fall webworm
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  • Home
  • Watch
    • TV Schedule
    • Full Episodes Online
    • How-to and Informational
    • Questions and Answers
    • This Week in the Garden
    • Garden Notes
  • Garden Topic Collections
    • Apple Trees: How-to and Information
    • Peach Trees: How-to and Information
    • Tomatoes: How-to and Information
    • Square Foot Garden Blog
  • Resources
    • Soil Testing
    • Extension Publications
    • Gardening Resources
    • Blogs
    • Organic Gardening
    • Articles
    • Privacy
  • Guests
  • Contact Us
    • Ask a Gardening Gardening Question
  • Search