Dry weather has caused stand issues for the later-planted sugarbeets. Minn-Dak Vice President of Agriculture Mike Metzger says the dryness has also impacted pre-emergence weed control. Some of the pre-emergence chemicals will activate when they get rain while others will not. “It depends on the chemistry. For example, Warrant has an encapsulated type formulation that will lay longer than most of the other herbicides. Some of the other ones, they photodegrade and after a week-to-ten days, you start losing their potency just because the sun’s breaking down those molecules.” Metzger says weed control needs a pre-Roundup mindset.
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