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Those little bags on your arborvitae? Pick them off now - Buds Tree Care

Those little bags on your arborvitae? Pick them off now

Those little bags on your arborvitae? Pick them off now

Bugs & pestsNovember 13, 2026

Key takeaway

Each bagworm bag can hold hundreds of eggs. Hand-picking from fall to midspring removes them before they hatch.

Seeing little bags hanging on your arborvitae or juniper?

Those are bagworm bags. University of Illinois Extension says arborvitae and junipers are among the evergreens bagworms attack most often. The bags hold the eggs through winter, about 500 to 1,000 per female bag, and they hatch from late May to mid-June.

Now that the leaves are down, the bags are easy to spot. Hand-picking and destroying them from fall into early June works well on shrubs and small trees, and it stops next June's caterpillars before they start.

Tip: pull off any bags you can safely reach and seal them in a plastic container for disposal. Don't drop them on the ground. Most bags can't be reached on taller trees, so if yours are tall, we're happy to book an assessment.

Questions are always welcome: budstreecare.com

Source: University of Illinois Extension, https://extension.illinois.edu/insects/bagworm

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Buds Tree CareCertified arborists · Champaign-Urbana since 2003
SourcesUniversity of Illinois Extension: BagwormUniversity of Illinois Extension / Crop Sciences: Bagworm - Home, Yard and Garden Pest NewsletterUniversity of Illinois Extension, Home, Yard & Garden Pest Newsletter: Bagworms

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