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ID leaf beetles on asters #872760

Asked June 12, 2024, 10:04 AM EDT

Can you ID these beetle larva? They are on asters and wide spread throughout a 25+ year old area of native plants in a large park on Chicago’s north side. Many destroyed leaves have a lacy pattern.

Cook County Illinois

Expert Response

It appears to be some sort of leaf beetle larva (Chrysomelidae), possibly a species of Trirhabda.

An Ask Extension Expert Replied June 13, 2024, 5:48 PM EDT

This work is supported in part by New Technologies for Ag Extension grant no. 2020-41595-30123 from the USDA National Institute of Food and Agriculture. Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the view of the U.S. Department of Agriculture.

ID leaf beetles on asters #872760

Expert Response

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