Subject: Caterpillar Infestation
Location: Regina, SK, Canada
July 4, 2014 11:04 am
I thought you might enjoy these pictures of a caterpillar infestation on tree trunks in Regina, SK, Canada. I was told by a local that they call these canker worms. There were about 10 trees all in a row and every tree trunk had these caterpillars on them in these large groups. Interestingly, I didn’t see a lot of foliage damage on the trees themselves, so I was wondering if they were somehow feeding on sap? The photos were taken in June. Thanks for your website. I love it.
Signature: Steven Sluder
In May, we posted a letter with images from Maryland of a large aggregation of Eastern Tent Caterpillars, Malacosoma americana, and they do feed on leaves. According to BugGuide: “larvae feed on leaves of many trees and shrubs but particularly members of the rose family such as apple, cherry, and crabapple.”