A Michigan State University researcher and his team have found two concentrations of maple leaf tea extract significantly inhibited the growth of Microdochium nivale. The National Turfgrass Research Foundation (NTRF), which has funded the study called “Discovery of Maple Leaf Allelopathic Chemicals for Organic Weed Control in Turf,” notes Dr. Eric Patterson and his team are investigating to see if maple leaves hold the key to organic weed contro…