John Dempsey, Ph.D. – Phosphites for turfgrass management

Independent turfgrass consultant John Dempsey, Ph.D., explains exactly what phosphite is, how it is best used in a program, results of field trials looking at its ability to suppress disease and relieve abiotic stresses. He also discusses phosphite’s disease suppressive abilities, its uptake following foliar application to turfgrass and its effect on growth and development.