Possible American Dagger caterpillar #725765 - Ask Extension

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Possible American Dagger caterpillar #725765

Asked September 21, 2020, 1:27 PM EDT

These caterpillars completely stripped one of my small spruce-like ornamental tree, and cocooned on it, about 2 months ago. The tree was sprayed, and is recovering. I just found another caterpillar on my back sidewalk. Is this an American Dagger caterpillar?

Oakland County Michigan

Expert Response

Hello,
Yes, it appears to be American Dagger moth caterpillar.
https://www.canr.msu.edu/news/fuzzy_fall_visitors_caterpillars_that_attract_attention_and_could_cause_nee
Keep your evergreens watered each week, up to when the ground freezes next month, if we have no rain in the week. This helps them better survive the winter and put out new growth next spring.
Laura Sheffer Replied September 21, 2020, 2:19 PM EDT

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