Summer patch in PA
May 28, 2020
Summer patch caused by Magnaporthe poae can cause some strange symptoms on golf course greens. In 2018, a golf course in Pennsylania observed rapid appearance of chlorotic patches throughout the course. The rapid appearance of the spots caused great concern. The disease appeared to be spread by equipment with patches occurring in straight lines. On-site diagnosis with the assistance of a well-meaning company technical representative with a microscope indicated that foliar pythium blight might be the cause. Subsequent diagnoses at…