As in the recent past, there are no new herbicide products with unique modes of action that will be registered for use in our area anytime soon. Otherwise, here are some newer product premixes, revised formulations of existing active ingredients, and tradenames to consider.

Glyphosate-resistant horseweed populations have become more widespread in the state and are now a significant management issue in western PA and the Northern Tier. In addition to glyphosate- or glyphosate and ALS-inhibitor resistance, horseweed is challenging to control because of variable emergence patterns.