Category Archives: Weeds

Big weeds found at the Farm Technology Days event in Portage County

Mark Renz, Extension Weed Scientist Despite the cool summer we had plenty of weeds at the Weed Experts booth this past week.  Of the many samples brought in for identification eight participants submitted nine weeds they felt deserved the title … Continue reading

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Biggest Weed Contest at the Weed Doctor’s Booth at FTD

Mark Renz, UW-Madison Extension Weed Scientist What does a cold winter, a wet spring, and a moderate summer produce?  A bumper crop of big weeds!  Yes once again weed scientists with University of Wisconsin Extension are holding the biggest weed … Continue reading

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Bur and Wild Cucumber; Two Native Vines Common in Wisconsin

Mark Renz, Extension Weed Specialist, UW-Madison Now is the time of year when we start to notice vines climbing trees, crops, and even structures. While Wisconsin has over 50 plants categorizes as vines, bur (Sicyos angulatus L.) and wild (Echinocystis … Continue reading

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White tipped/bleached Canada thistle, a good thing

Mark Renz, University of Wisconsin Extension Weed Specialist Wet springs, bring good and bad things from a weed perspective. First the bad: we often see much more Canada thistle in our pastures, row crops, and roadsides in Wisconsin in wet … Continue reading

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Data suggests glyphosate resistance of two Wisconsin common water hemp populations

Thomas R. Butts and Vince M. Davis, Department of Agronomy, University of Wisconsin-Madison The two weed populations examined were collected from crop production fields in Eau Claire and Pierce counties. They were identified through the Late-Season Weed Escape Survey in … Continue reading

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Wisconsin 2014 Pest Management Field Day

Bryan Jensen, University of Wisconsin IPM Program Pest Management Field Day June 26, 2014, 8:30 am Arlington Agricultural Research Station. Our field day features several topics presented by University of Wisconsin faculty, staff and students. Pre-registration is NOT required and the … Continue reading

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Arlington Weed Garden Open for 2014

Mark Renz, Extension Weed Scientist Although summer hasn’t officially started, the weed garden is open and ready for business at the Arlington Ag. Research Station. Thanks to a generous donation by the Wisconsin Certified Crop Advisor Association we have renovated … Continue reading

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Little leaf buttercup, a bitter weed in spring hayfields

Mark Renz, Extension Weed Scientist, and Kevin Shelley, UW NPM Program Buttercups, have been showing up this spring in pastures and hayfields in southern Wisconsin.  While Wisconsin has 18 species of buttercup, little leaf buttercup (Ranunculus arbotivus) is the most commonly seen in production … Continue reading

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How to use UWEX Pest Management Mobile web app

Pest Management Mobile: a resource for pest management in agronomic crops in Wisconsin Mark Renz, Extension Weed Specialist; University of Wisconsin-Extension University of Wisconsin-Extension is pleased to announce Pest Management Mobile, which offers quick mobile access to key pest management … Continue reading

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Hop production workshops for sprayer calibration and more

UW-Madison Integrated Pest Management specialist Dan Hieder will be speaking at two hop production workshops held in Waterloo and Arkansaw, WI. Both workshops are the same and are titled “Hop Production in Wisconsin: Sprayer Calibration and Proper Pesticide Application.” Both … Continue reading

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