A field study was conducted by WiscWeeds Graduate Research Assistant Guilherme Chudzik in 2022 and 2023 at the Rock County Farm, Janesville, WI, to evaluate the impact of soil management practices, soybean planting time, and …
Weeds
Harvest Aid Considerations for Weedy Soybean Fields
There are a lot of weedy soybean fields across Wisconsin this year and the dry conditions are the major culprit. A lack of precipitation reduced the effectiveness of many residual herbicides and drought-affected soybeans were …
Successful cereal rye cover crop termination in soybean
If you are a soybean grower, you probably know that weed management programs utilizing high-biomass cereal rye (Secale cereale L.) cover crop in Wisconsin soybean systems and beyond are increasing in popularity. Multiple benefits, such …
Lack of Effective Waterhemp Control, Group 14 soil residual herbicides
The UW-Madison WiscWeeds program has been promoting diversified integrated weed management practices to alleviate the selection pressure imposed by the recurrent use of commonly adopted herbicides due to concern with the alarming rate of herbicide …
Wisconsin Palmer amaranth, where are you?
Arneson, Faleco & Werle, UW-Madison Agronomy Weed Science Show of hands, how many of you have heard of Palmer amaranth? We can’t see how many of you have raised your hands, but we are going …
2022 WI Weed Science Research Report
The 2022 WI Weed Science Research Report is available! Report includes weed control, crop injury & yield data from 18 corn & soy trials conducted by the WiscWeeds team. The purpose of this report is …
Metabolic Herbicide Resistance
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 …
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 …