Knowledgebase

Oak Tree Caterpillars #759040

Asked June 29, 2021, 11:36 AM EDT

We have a big problem with caterpillars in our oak trees. They are eating the leaves and the debris plus little black balls are falling in huge numbers. I wonder if you could give any suggestions as to what type of caterpillars this is, what the black balls are, and how to treat it? This has been going on for at least two weeks..

Allegan County Michigan

Expert Response

Our MSU Integrated Pest Management has dedicated a page to Gypsy Moth where many resources can be found easily.


https://www.canr.msu.edu/ipm/invasive_species/Gypsy-Moth/index?fbclid=IwAR2nU7gVyaI5Dr7eyhpmJo8d_R90gBDCqgbGM1zSLdzQWSbeKhn8x2DZ3cw


good luck!

Ask Extension Question Wrangler Pronouns: she/her/hers Find your local Extension office here: https://www.canr.msu.edu/outreach/county Find an expert in a specific topic here: https://www.canr.msu.edu/outreach/experts/experts-by-topic-area Find home gardening information here: https://www.canr.msu.edu/home_gardening/ Order a soil test kit here: https://www.canr.msu.edu/news/soil-testing-returns-through-msu-extension Mold questions? We don’t have an expert in mold, but we do have a few resources below or contact the  Michigan health department. Molds in the Home Indoor Air Quality May be Hazardous to Your Health   Mushroom questions? We can’t identify, but we do have these three resources to help you: Identifying  Morel  Poisonous MSU is an affirmative-action, equal-opportunity employer. Michigan State University Extension programs and materials are open to all without regard to race, color, national origin, gender, gender identity, religion, age, height, weight, disability, political beliefs, sexual orientation, marital status, family status or veteran status. Michigan State University occupies the ancestral, traditional and contemporary lands of the Anishinaabeg, Three Fires Confederacy of Ojibwe, Odawa and Potawatomi peoples. The University resides on the land ceded in the 1819 Treaty of Saginaw. Replied June 29, 2021, 11:54 AM EDT

Loading ...