Bagworms on Spruce

Bagworm Damage Becoming Obvious

Common bagworms have been with us for a while. Overwintered bagworm eggs began hatching in southwest Ohio at the end of May (see “Bagworm Eggs are Hatching: The Game’s Afoot!,” June 1, 2022). However, it’s amazing how long these general defoliators can continue to crawl below our radar as they chomp on evergreens and deciduous trees and shrubs before their cumulative damage and size finally make them apparent.
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Authors
Joe Boggs

The Bagworm Season is in the Bag

The vast majority of Common Bagworm caterpillars in southwest Ohio have initiated their annual "tie-off" in preparation for pupation. Bags are tightly closed and tied with silk to a twig or other anchorage point. Likewise, male bagworms in the northwest part of the state have tied-off; however, some female caterpillars are continuing to feed.
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Authors
Joe Boggs
Curtis E. Young
Bagworms Tie One On. young.2 Thu, 09/01/2016 - 10:40
As summer draws to an end, many insects and mites approach the end of their seasonal activities as well. Curtis Young reports that the majority of common bagworms (Thyridopteryx ephemeraeformis) have finished their destructive feeding as caterpillars in their individual bags, have tied their bags to their host plant, and are pupating (pupa=3rd stage of their life cycle).
Published on
Authors
Curtis E. Young