Herbicide Resistance in Cotton Demonstrated at Virginia Ag Expo
Dr. Hunter Frame, field Crops agronomist and Asst Professor with Virginia Tech, was a presenter at last week’s Virginia Ag Expo in Virginia Beach. Southern Farm Network’s Bob Midles spoke with Frame about the cotton crop overall, and some of the field trials he was presenting at the Expo:
“Cotton is up and down depending on the area. Some areas have had 30+ inches since May and replanted maybe three times. The cool weather slowed both planting and growth down. We were delayed about two weeks.
Overall the crop looks ok, but its really up and down depending on where you are. Soil type and drainage really play a part. These last few weeks have been relatively dry and allowed cotton to start to flower and right now we are in the 4th week of bloom.
Our acreage is down this year. Part of that is due to the weather. Some guys did trade in for beans. A lot of that cool weather made them decide to switch to beans. But we did have some trade from corn to cotton. We are about on what the estimates were.
We showcased a herbicide trait trail here, looking a trait stack, different modes of action. We sprayed different herbicides over the top for different weed control tactics.
In one plot we have our Fibermax variety with the glytol traits – half is sprayed with Roundup the other half is sprayed with LibertyLink. We have also have two different pre-emergent herbicides.
We have seen that timely weed management is key to having good weed control.”
For more on the 2013 Virginia Ag Expo stay tuned to our website.