We have just posted the 2013 Weed Control Guide for Field Crops (E-434)…enjoy!
Archive for the ‘Herbicides’ Category
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.
The weather in Michigan has grown cold and so our research program has moved indoors. Today we kicked off our first big greenhouse project of 2012 looking at how corn herbicides could impact the following rye cover crop. Field-collected soils from select corn herbicide treatments are used to evaluate rye emergence, injury, and biomass accumulation. These treatments are compared to greenhouse treated herbicide dilution series consisting of the same herbicides at rates ranging from 1/2x to 1/32x. Stay tuned for results from this study supported by Project GREEEN.
Yesterday I headed up to Minden City, MI with Christy Sprague and our newest master’s student, Amanda Harden. We were there to rate an on-farm research plot, looking at windgrass control in wheat using fall and spring applied herbicides. Windgrass is a winter annual weed, meaning it germinates in the fall, overwinters, and produces seed in the spring, putting it in direct competition with wheat. Windgrass could be confused with annual bluegrass, another winter annual, however the membranous ligule of windgrass is more jagged at the top, whereas the ligule of annual bluegrass is smooth. Additionally, the sheath of windgrass is rounded, whereas the sheath of annual bluegrass is more flattened. Look for the results this windgrass control study during the winter extension meetings and on MSUweeds.com.
Glyphosate-resistant palmer amaranth is still a very new weed to Michigan. We have updated two extension publications regarding the identification (MSUWS01-2012) and confirmation and management (MSUWS02-2012) based on our ongoing research program to combat the spread of this prolific weed. You can view and print these publications by following the above links or in their permanent home in the Extension Publications section of MSUweeds.com.