The degree of wintergrass control achieved will be influenced primarily by the rate and frequency at which SHORTstop 200SC is used. Most temperate research shows that a ‘little and often’ application strategy is the most effective means of suppressing wintergrass competition in a bentgrass greens (see your tech rep for more info). The Turf Growth Regulator (TGR) ingredient in SHORTstop is root absorbed and needs to be watered in to take effect. After irrigation, SHORTstop binds to organic carbon and therefore settles at the very top layer of soil, where wintergrass roots congregate due to their shallow habit. Because bentgrass and other cool season grasses (when healthy) produce… ...Read More