Is Metabolic Herbicide Resistance the Straw That Will Break Weed Management’s Back? Jed Colquhoun, UW-Madison, Extension Weed Scientist In a long-term tillage research project in Kansas, a Palmer amaranth population was identified that was resistant …
Weeds
2021 Wisconsin Weed Science Research Report
Ryan DeWerff, Nick Arneson, Rodrigo Werle, Extension Cropping Systems Weed Scientist, UW-Madison The purpose of this report is to share the results of corn and soybean herbicide evaluation research trials conducted by the Wisconsin Cropping …
PRE-emergence Herbicide Selection for Early Planted Soybeans
Over the last two growing seasons (2020 and 2021), weather and soil conditions across southern Wisconsin were favorable for early soybean planting (see USDA NASS data below). Under suitable environmental conditions, planting soybean early is …
Wisconsin Waterhemp Herbicide Resistance Project
Rodrigo Werle, Assistant Professor & Weed Specialist, Department of Agronomy, University of Wisconsin-Madison 2021 Wisconsin Waterhemp Herbicide Resistance Project (2,4-D, dicamba & glufosinate) Earlier this year we received a few complaints regarding lack of performance …
Eight More Weed Identification Factsheets Available
Mark Renz UW Madison Professor and Extension Specialist Test your knowledge on identification of common weed species found in Wisconsin with four new and four updated weed identification factsheets (see table below). These describe key …
Six New Weed Identification Factsheets Online
Mark Renz UW Madison Professor and Extension Specialist (mrenz@wisc.edu) Identification of weeds is a critical first step to management. This past winter/spring we have created new factsheets to assist with identification for some of Wisconsin’s …
2020 Wisconsin Weed Science Research Report
Rodrigo Werle, Assistant Professor & Weed Specialist, Department of Agronomy, University of Wisconsin-Madison The 2020 Wisconsin Weed Science Research Report is now available online! Blog Post: https://www.wiscweeds.info/post/2020-wisconsin-weed-science-research-report/ PDF File (119 pages): https://www.wiscweeds.info/img/2020%20Research%20Report/2020%20Wisconsin%20Weed%20science%20Research%20Report.pdf 2020 RESEARCH TRIALS …
Court Vacates Registration of Three Dicamba Products
Growers Can Use Existing Stocks of XtendiMax, Engenia and FeXapan, Says EPA by Glen Nice and Steve Tomasko, UW-Madison Pesticide Applicator Training Program Last week, a U.S. Court ruling “vacated” the registrations for three dicamba …
Post-emergence Corn and Soybean Herbicide Restrictions for Broadcast Applications
Rodrigo Werle, University of Wisconsin-Madison Cropping Systems Weed Scientist and Extension Specialist Favorable spring weather has given Wisconsin farmers a great start to the season with a fair amount of corn and soybean acres planted …
2020 Considerations for Cover Crop Termination
Rodrigo Werle, University of Wisconsin-Madison Cropping Systems Weed Scientist and Extension Specialist The adoption of cover crops in corn-soybean production systems can help growers improve cropping system resiliency to extreme weather events, improve soil conservation …