Thyridopteryx ephemeraeformis

Bagworm Season Drawing to a Close

This "bagworm season" which began in early June was marked by damaging localized infestations throughout Ohio. Images showing heavy defoliation from bagworms (Thyridopteryx ephemeraeformis) were commonly shared during our weekly BYGL Zoom Inservices. Populations appeared to be higher than has been seen for several years.
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Authors
Joe Boggs
The Bagworm Season is in the Bag boggs.47@osu.edu Sat, 08/24/2019 - 10:56
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 Reveal Themselves!

This is the time of the year when Common Bagworms come into clear focus owing to their size and noticeable damage. Overwintered eggs hatched in southwest Ohio in early June (see "Be Alert to Bagworms!" posted on June 6). However, it's amazing how well these native moth caterpillars crawl below our radar until their burgeoning appetites finally gives them away.
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Authors
Joe Boggs

Bagworms are Wrapping Up

Most of the Common Bagworms I looked at yesterday in southern Ohio and central Indiana had initiated their annual "tie-off" in preparation for pupation. Bags are tightly closed and tied with silk to a twig or other anchorage point. This means the damage caused by these caterpillars wrapped in silk bags festooned with host plant debris is drawing to a close.
Published on
Authors
Joe Boggs