Insects and Spiders - native

Western Tent Caterpillar (Malacosoma californicum) on Aug 10, 2018

Originally reported as Unknown insect or spider

Submitter has sample
EDRR Status: No Response/Action Required

Description of specimen

White web mass I n tree
Craig Davis


Dear Craig, this is likely the western tent caterpillar, a native moth. If you are interested in management, the caterpillar can defoliate your tree, cut the nest with the caterpillars off and dispose it off. Thank you for contacting our Invasive Hotline. Best regards, Helmuth Rogg, Oregon Department of Agriculture

Helmuth Rogg
Aug. 10, 2018, 8:18 p.m.