Samples of Tar Spot in Corn Needed for Research
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Harvest Considerations to Reduce Weed Seed Movement
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Tackling Pest Resistance in Iowa
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New Web-based WPS Train the Trainer Course Now Available
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Crop Quality Hurt by Rains
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Mueller's Top 3 Soybean Diseases of 2018
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New Study Evaluates Producer Perception of Large-Scale Foliar Fungicide Adoption at Turn of the Millennium
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Fungicide use in corn production in the United States was a rare practice for much of its history as a commercial grain. Only recently has fungicide increased rapidly, specifically between 2000 and 2010. While the use of fungicide on the crop grew exponentially, plant pathologists did not record an increase in fungal foliar disease pressure in corn.
New dicamba restrictions
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Fewer Choices, But Greater Variety, in SCN-resistant Soybean Varieties for Iowa in 2019
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Western Corn Rootworm Resistance to Final Bt Trait Confirmed
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Corteva Agriscience recently confirmed resistance to the Cry34/35Ab1 Bt protein in Delaware County.
Three of four Bt traits targeting corn rootworm (Cry3Bb1/Yieldguard rootworm; mCry3A/Agrisure RW; and eCry3.1Ab + mCry3A/Agrisure Duracade) are not reliable for rootworm control due to widespread resistance. Due to a reduction in effectiveness of the Cry3 proteins, farmers have come to rely upon Cry34/35Ab1 for rootworm protection, placing significant selection pressure on this trait.