Since the inception of the Iowa Pest Resistance Management Program in 2017, growers, agronomists, Extension educators and specialists, and other stakeholders in Harrison County, Iowa, have worked to gain a better understanding of herbicide-resistant weeds — including Palmer amaranth, waterhemp, marestail and giant ragweed populations resistant to different chemistries.
There are four groups involved in the program, and starting in 2021, the Harrison County group is also going to focus on plant disease and fungicide efficacy, and resistance on different pathogens in both corn and soybeans. For more, please click here
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