Herbicide-resistant weed management strategies
2023
Hunter, Mike
One or more herbicide resistant weed specie can be found in every state in the Northeast and are present in major crop production areas across the country. Herbicide resistant weeds are not new. In 1977, a population of triazine resistant common lambsquarter found in a New York corn field was the first confirmed herbicide resistant weed in the Northeast. The list of herbicide resistant weed cases throughout the Northeast continues to grow as time goes on. Populations of horseweed (marestail) with resistance to both glyphosate and acetolactate synthase (ALS) herbicides are rapidly expanding. Herbicide resistant Palmer amaranth and tall waterhemp are found in the Northeast with reported cases of populations resistant to glyphosate, atrazine, and ALS herbicides.
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