Archive for the ‘Herbicide Resistance’ Category

Palmer amaranth ID video

Friday, June 14th, 2013

-Erin Hill (Taylor)

Just this week we finished production on our Palmer amaranth identification video. We hope that this will be the first of a series of videos helping to identify and manage this herbicide-resistant weed in Michigan.

NEW Extension Bulletin: Keys to distinguishing Palmer amaranth from other species

Wednesday, March 27th, 2013

-E. Taylor

Today we just posted an extension bulletin to MSUweeds.com to help distinguish among the pigweed species currently found in Michigan. Species we currently have include:

  • Powell amaranth
  • Redroot pigweed
  • Smooth pigweed
  • Palmer amaranth
  • Waterhemp

Some of these species in Michigan have been confirmed to be resistant to different herbicides (e.g. glyphosate and ALS inhibitors), so confirming the identity of your weed may be critical to the strategies needed for control.

Check out “Keys to distinguishing Palmer amaranth from other species” at MSUweeds.com.

Resistance Issues Standout at 2013 WSSA

Wednesday, February 27th, 2013

-E. Taylor

It seems like more and more we are dealing with herbicide resistance issues when it comes to weed control. To look at how big a factor it is in our research I crunched a couple numbers from the 2013 Weed Science Society of America annual meeting in Baltimore, MD. There was no shortage of oral papers and posters on the subject from across the United States, out of 371 posters and papers at least 74 (~20%) dealt with herbicide resistance issues. Two of the five symposiums were dedicated to the subject: “Herbicide Resistance Management: The path forward” and “Environmental Assessment of Herbicide Resistance.” At the first symposium there was standing room only with over 200 people in attendance, which made up over 50% of the people at the meeting. Herbicide resistance is not an issue that is going away anytime soon and a lot of minds in weed management research are working together to strategize.

To learn more about herbicide resistance visit:

WeedScience.org

Or check out the 2013 WSSA abstracts (will be posted to this link soon)

2013 Weed Control Guide for Field Crops

Tuesday, February 19th, 2013

-E. Taylor

We have just posted the 2013 Weed Control Guide for Field Crops (E-434)…enjoy!

MSU 2013 WSSA posters available

Thursday, February 7th, 2013

-E. Taylor-Hill

We just returned from Baltimore, MD (home of the 2013 Superbowl Champions) where we attended the 2013 Weed Science Society of America annual meeting. It was a great opportunity to look at weed related research from around the nation and beyond and to take a look at how the rise in herbicide resistant weeds seems to be impacting agriculture across the U.S. (look for a future blog on that).

Now that we are back I posted the 3 posters that we presented. Our topics included…

  • Influence of soil amendments on seed mortality of herbicide resistant Palmer amaranth
  • Volunteer glyphosate resistant (RR) corn control in RR sugarbeets
  • Cover crop influence on weed pressure in organic dry beans

Visit the Presented Research section to view the posters.