Category Archives: Weeds

Biggest Weed Contest to be held at the Weed Doctor’s Booth at Farm Technology Days in Outagamie County

Biggest Weed Contest to be held at the Weed Doctor’s Booth at Farm Technology Days in Outagamie County Mark Renz, UW-Madison Extension Weed Scientist The weather has been crazy this spring and summer, but the Weed Doctors are betting that … Continue reading

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Dry conditions continue to persist in Southern WI: Poor Early Weed Control is Evident

Dry conditions continue to persist in Southern WI: Poor Early Weed Control is Evident Vince M. Davis, Extension Weed Scientist What happened to this poor soybean stand? Poor stand establishment…Disease…Insects…?   Answer: Dandelion competition in dry conditions! A drive around much … Continue reading

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Late-Season Weed Escapes in Wisconsin Corn and Soybean Fields

Vince M. Davis, Extension Weed Scientist and Ross Recker, Graduate Research Assistant The potential increase of glyphosate-resistant weeds is a major threat to corn and soybean production across the Nation.  Integrated Weed Management tactics, including diversified herbicide use, are important … Continue reading

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Giant Ragweed Resistance to Glyphosate in Wisconsin

Giant Ragweed Resistance to Glyphosate in Wisconsin Dave Stoltenberg (Weed Scientist, Dept. of Agronomy, UW-Madison), Melinda Yerka and Courtney Glettner (Graduate Research Assistants, Dept. of Agronomy, UW-Madison), Jim Stute (Crops and Soils Educator, Rock County, UW-Extension), Tim Trower (Senior Outreach … Continue reading

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Weeds could be Tough to Control with POST Herbicides this Year

Weeds could be Tough to Control with POST Herbicides this Year Vince M. Davis, Extension Weed Scientist Corn and soybean growers have encountered several challenges with controlling weeds with herbicides this season, and the current weather may cause that trend … Continue reading

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New Fact Sheets Added for Invasive Plants and Weeds

New Fact Sheets Added for Invasive Plants and Weeds The Renz lab in the UW-Madison Agronomy Department in cooperation with University of Wisconsin-Extension Team Horticulture, Wisconsin Department of Natural Resources, and the Midwest Invasive Plant Network has continued the development … Continue reading

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Wisconsin Pest Bulletin

The Wisconsin Pest Bulletin from the Wisconsin Department of Agriculture, Trade and Consumer Protection provides pest population estimates, pest distribution and development data, pest survey and inspection results, alerts to new pest finds in the state, and forecasts for Wisconsin’s … Continue reading

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Early Spring Creates Early Weed Pressure Concerns

Early Spring Creates Early Weed Pressure Concerns Vince M. Davis, Cropping Systems Weed Scientist and Extension Specialist, UW-Madison This spring is shaping up to be one for the record books in many ways, but ‘early’ is mostly an understatement.  The need … Continue reading

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2012 Weed emergence in Wisconsin: uncharted territory

2012 Weed emergence in Wisconsin: uncharted territory Mark Renz Extension Weed Scientist, Agronomy Department, University of Wisconsin-Madison Time of first weed emergence is fairly consistent from year to year.  For example Jerry Doll monitored yellow foxtail emergence over a three … Continue reading

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Palmer amaranth is in Wisconsin crop production fields

Palmer amaranth is in Wisconsin crop production fields Vince M. Davis, Annual Cropping Systems Weed Scientist Palmer amaranth (Amaranthus palmeri S. Watson) is a very problematic annual broadleaf weed for many cotton and soybean producers in the Southern and Mid-southern … Continue reading

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