Waterhemp control is an increasing challenge for soybean producers due to the evolution of multiple herbicide-resistant populations. With dwindling herbicide resources, there is a need to integrate non-chemical strategies into […]
Iowa: Scout Now for Palmer Amaranth Jul 31, 2020
This is the time of year to begin scouting for Palmer amaranth in Iowa crop fields. While Palmer amaranth has been identified in more than half of Iowa’s counties, new identifications […]
Dicamba – What Does the Future Hold? – DTN Jul 16, 2020
Future registrations are uncertain, weed escapes are rising, and some farmers are tired of the drama. What lies ahead for dicamba use in the U.S.?
Iowa: Dicamba 2020 – What Went Wrong? Jul 10, 2020
There is no question that dicamba injury across the Iowa landscape in 2020 is the most extensive it has been since the introduction of dicamba in the 1960s. ISUEO field […]
Iowa Soybeans: Looking For Preemergence Consistency Apr 20, 2020
The battle against waterhemp is complicated mainly because of its extended emergence period (early May until August). Preemergence (PRE) soil residual herbicides serve as a foundation for managing waterhemp, but […]
Preemergence herbicides are the foundation of herbicide-based weed management systems, and effective use of these products is essential to protect crop yields and reduce selection pressure for herbicide resistant weeds.
The spread of multiple-resistant weeds threatens Iowa’s production system. In order to slow the expansion of resistance, greater diversity in weed management is necessary.
Fall Burndown: 3 Points To Remember Oct 1, 2019
The plentiful rain in September has provided ideal conditions for establishment of winter annual weeds, thus many no-till fields will have dense stands of these weeds going into winter (Fig. […]
As harvest approaches, Iowa State University will conduct a statewide survey to collect waterhemp seeds produced by plants in corn/soybean fields as well in field edges.
Iowa: Weed Science Field Day, Ames, June 27 Jun 17, 2019
Join the ISU Weed Science Program at the 2019 Herbicide Research and Demonstration Program Field Day on Thursday, June 27. The field day will be at the Curtiss Farm on South State Street […]