Staying ahead of weed control can be a challenge. University of Minnesota Extension Weed Scientist Dr. Debalin Sarangi says in a U of M Field Crop IPM podcast that while there is a rush to get crops in the ground, weeds are already starting to emerge. “As I recommend every year, sprayers should follow your planter. Pre-emerge should be down within three days of the crop planting.” While pre-emerge herbicide is important, it’s key to continue to monitor fields. Weeds can emerge at any time throughout the growing season. “Waterhemp can emerge throughout the season.” Sarangi says it may still be necessary to follow-up with post-emergence herbicide later in the season.
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