Areas in the south portion of Michigan’s Lower Peninsula have had over 8 inches of rain in the past month. Wet turf conditions have delayed mowing and in some cases we are seeing turf yellowing and dying.
Ground ivy (also known as Creeping Charlie), wild violet and several speedwells (Germander and Creeping) are actively flowering in lawns. The flowering period is the best opportunity to kill them until fall arrives.
Apple scab in crabapples may be a problem due to the lengthy periods of rain this past month, which provided conditions for apple scab spores to develop.
Eastern tent caterpillar tents are visible in tree branches of wild cherry, cultivated Prunus spp., or crabapples.
The orange to yellow spores of Weirs cushion rust, pine-pine gall rust and white pine blister rust are visible on infected needles or branches.