Scalping on bentgrass with Proxy: a "Providence" effect?
October 30, 2009
Proxy (ethephon) has been a very useful tool for suppression of poa seedheads, especially when used in combination with Primo (trinexepac-ethyl). There are, however, some watch-outs when using this product, as detailed in an article in the June, 2009 edition of Applied Turfgrass Science, "Scalping and creeping bentgrass quality as influenced by ethephon and trinexapac-ethyl" by PH Dernoeden and RL Pigati of the University of Maryland.
The study was conducted on Providence creeping bentgrass, mowed at 0.15 inch (4 mm),…