Proxy and mixtures

As Poa seedhead season approaches, questions about the use of ethephon (Proxy), a Poa seedhead inhibitor, have begun to surface. This year’s most popular question concerns the advisability of mixing Proxy with other pesticides, fertilizers or growth regulators. In general, we suggest that you exercise great caution in mixing Proxy with other products. This is because the low pH (strong acidity) of Proxy makes it incompatible with many other products. This means that other products (or Proxy) may become inactivated…