Waterhemp has developed resistance to 7 herbicide sites-of-action classes, nearly exhausting the chemical tools farmers can use to defend their livelihood.
While herbicides remain a primary tactic to manage many weed species, farmers can implement several best management practices to slow resistance development and better control weeds like waterhemp.
For the past two years, we have been participating in a multi-regional U.S. Soybean Board funded experiment that is investigating the effects of planting green on no-till soybean production and management of multiple-resistant waterhemp populations.
Localized populations of these species found on headlands or field margins likely represent a new introduction. Populations that are distributed throughout fields are likely a sign that these species have gone undetected for more than one year.
What are some tactics you can employ around harvest time to help prevent weeds from replenishing the weed seed bank and giving you more headaches for years to come?
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Steve Wilkens, agronomy manager at Golden Harvest and Wisconsin no-tiller, and Steve Sterchi, global head of strategy at Syngenta and southern Illinois farmer, share their predictions for the 2024 growing season and advice for no-tillers who may be in for a season of extremes.
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