UC Weed Science (weed control, management, ecology, and minutia)

Marestail (Conyza canadensis; aka horseweed) and hairy fleabane (C. bonariensis; aka flax leaf fleabane) are serious weed problems in vineyards in Monterey County.

Over the past few years, herbicides with the active ingredient glufosinate (Rely, Rely 200, Rely 280) have become very important in California tree nut orchards and grape vineyards.

It's that time of the year when I try to update the list of herbicides registered for use in California orchard and vineyard crops. The attached version has all the updates that I have been made aware of by my industry reps during the year.

Abstract Non-synthetic herbicides offer a potentially useful addition to the suite of weed management tools available to organic growers, but limited information is available to guide the optimal use of these products.

Ok, I'll admit that I fully intended to do something useful today but got distracted thinking about weed control research, weed science extension, and herbicide-resistant weeds (what do YOU think about on Saturday afternoon?).