We got some much-needed rain this past week and not much run-off. This slow, soaking rain will help our plants because most of the water soaked into the soil.
As much as the rain has helped, there are some plant diseases active now. One of the diseases affects on trees and shrubs. Another is active in lawns.
The disease that is attacking our trees and shrubs is powdery mildew. It can be active from May until October, but is most prevalent in May and June. Powdery mildew likes sunny, dry days followed by cool, moist nights.