Research progress of summer patch disease on turf

Summer patch, also called summer blight patch or summer ring patch, caused by Magnaporthe poae, is a fungi discovered recently with great destructibility, which affected the turf grass root especially the Kentucky bluegrass (Poa pratensis).The summary introduced the symptoms, the disease development and the epidemiology of summer patch systematically, also summarized the identification of causative agents and the host range and distribution. The integrating strategies for the management of summer patch including fertilization, irrigation, pruning and the chemical and biological technologies were emphasised on this paper. Slow released fertilizer, deep water irrigation and maintaining a higher mowing height are all effective ways or slow down the symptom. The chemical control is the main prevention measure, and biological control of summer patch is still at a research stage.