White webbing on Red Currant bush

Asked June 22, 2020, 9:56 PM EDT

Some white webs showed up on a Red Currant bush last week. Now there is a powdery substance on the leaves. I looked up some information on the extension website. At first I thought it was spider mites that was causing the problem from what I read but it stated that the spider mites usually occurred during real dry conditions. That is not the type of weather we have been having so I was thinking it had to be some other type of insect. Do you have any suggestions about what is causing the problems and how do I treat the problem?

Winona County Minnesota

1 Response

Photos would have been helpful. It sounds like spider mites. The weather does not necessarily have to be hot and dry. The powdery substance could be powdery mildew. https://extension.umn.edu/yard-and-garden-insects/spider-mites https://extension.umn.edu/plant-diseases/powdery-mildew-trees-and-shrubs