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

This is one part follow up to my previous post on glyphosate resistance and one part test of a tool to imbed articles in the blog. The above frame has a 2008 report that Anil Shrestha, Kurt Hembree, and I wrote for California Agriculture on our glyphosate-resistant hairy fleabane work.

I thought I'd followup on my post last week about herbicide resistant weeds with a little more detail on our recent (and ongoing) work on glyphosate-resistant horseweed (Conyza canadensis) which is also known as mare's tail.

This is a reposting of an article I recently wrote for the California Weed Science Society Journal (also reprinted by Western Farm Press). The article is based on a presentation I made at the California Weed Science Society annual meeting in Visalia last January.

63rd Annual Conference California Weed Science Society Weed Control: Balancing Biology, Reality & Sustainability Conference dates: January 19, 20 & 21, 2011 Portola Plaza Hotel Two Portola Plaza Monterey, CA 93940 (888) 222-5851 Click here for Society Info Click here for Conference Agenda Click here...

This week I received an email request for information on the soil concentration of herbicide necessary to have a phytotoxic effect. This is a simple-sounding question and I was able to confidently say Well, that depends..