Phillip Glogoza, UMN Extension Educator for Crops
Extension Regional Office - Moorhead
by Ryan Miller and Lisa Behnken
Last week, we shared a video on Spring herbicide activity concerns due to cool and wet conditions following preemergent corn herbicide applications (Spring herbicide activity concerns -- May 27, 2017). In the video, we noted that weeds were coming through and wondered if the preemergent herbicides that had been applied would do their job.
We are back in the research plots in Rochester and checking-in to see how things have been progressing over the past week. In this week's video, we're sharing some interesting observations.
We have seen differences in the time it takes for different preemergent herbicides to activate, and differences in "reach-back" with different herbicide products. We have also seen the benefit of preemergent herbicides in taking some of the pressure off of postemergence applications by providing at least some of our weed control, and by extending the window to accomplish postemergence applications.
To view this week's video, Spring herbicide activity progress, visit https://youtu.be/MBdMDr7LIEc. We will be following this trial during the 2017 growing season and providing periodic video updates.
Spring herbicide activity concerns, May 27, 2017
Spring herbicide activity progress, June 8, 2017
If you like content in this format please subscribe to our YouTube channel:
For other information from University of Minnesota Extension crops, visit z.umn.edu/crops.