ABSTRACT

A satisfactory growth-regulating chemical to restrict turfgrass growth can contribute to a reduction in labor, fuel, and equipment costs in the proper situation. Growth regulators may be applied to grasses as foliar sprays, fogs, or soil drenches. Mefluidide should be applied only to green, actively growing turf. There are two principal methods of chemical control of grass growth — reduced cell division in the meristematic regions, typical of chlorflurenol and Maleic hydrazide (MH), and reduced cell elongation, typical of mefluidide. MH has an exceedingly low vapor pressure and losses from soil and plant surfaces by volatilization are negligible. Transportation department personnel in North Carolina, Virginia, Maryland, and New York have stated that MH reduces mowing amount or frequency by 50 to 90% and reduces maintenance costs by as much as 50%. A considerable number of growth-regulator evaluations have been made on roadside vegetation.