Weed Management

Suspected off-target dicamba injury to soybean. Cupped leaves are often indicative of dicamba injury. (Photos by Amit Jhala)
Figure 1. Suspected off-target dicamba injury to soybean. Cupped leaves are often indicative of dicamba injury. (Photos by Amit Jhala)

Dicamba Off-Target Injury Continues in 2019 in Nebraska

August 16, 2019
As the crop season progresses, questions about dicamba off-target injury in soybean, broadleaf crops, and trees are increasing in Nebraska. If you suspect off-target injury in one of your fields, here's a reminder of what to do.

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Figure 1. Weeds that are cut off with the combine header will need to regrow before they can be controlled.
Figure 1. Weeds that are cut off with the combine header will need to regrow before they can be controlled.

Controlling Weeds Post-Harvest in Winter Wheat

July 12, 2019
Wet weather this year made timely herbicide applications in winter wheat difficult, allowing substantial weed populations to get a foothold. The author discusses cultural and chemical options for weed management.

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Figure 1. Figure 1. The wheat-mite-virus complex has extreme potential to impact yield the following year if high risk volunteer wheat situations are not managed well
Figure 1. Figure 1. The wheat-mite-virus complex has extreme potential to impact yield the following year if high risk volunteer wheat situations are not managed well. (Photo by Gary Hein)

Why Control of Volunteer Wheat is Critical to Protecting 2020 Yields

July 12, 2019
Volunteer wheat can create a "green bridge," providing a route for mites to move to and infest emerging wheat. These mites can then transmit wheat streak mosaic virus, High Plains virus, and Triticum mosaic virus, or all of them to create a complex of infections.

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KSU: Pre-harvest Weed Control in Wheat - Sharpen Update

July 11, 2019
A Kansas State University weed scientist discusses pre-harvest options for managing weeds in winter wheat, including advantages and disadvantages of various labeled herbicides.

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Controlling Summer Annual Weeds in Alfalfa

June 26, 2019
Wet soils after alfalfa cutting can encourage weeds and grasses like foxtail, crabgrass, pigweed to grow quickly, but cultural and chemical control is possible.

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Mid-season Weed Management in Corn and Soybean

June 14, 2019
Managing weed escapes mid-season and late-emerging weeds can have a substantial impact on the spread of herbicide-resistant weed populations the following year. View the table of preemergence herbicides that can be applied postemergence.

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Glyphosate-resistant Palmer amaranth in corn
Figure 1. Figure 1. Glyphosate-resistant Palmer amaranth infesting a corn field in south central Nebraska. (Archive photo by Amit Jhala)

Glyphosate-Resistant Palmer Amaranth Field Day July 10

June 7, 2019
Jason Norsworthy, a weed scientist from the University of Arkansas, will be the keynote speaker at this year's Glyphosate-Resistant Palmer Amaranth Management Field Day on Wednesday, July 10, near Carleton.

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Injury from 1/10 Labeled Rate of XtendiMAX on R1 Roundup Ready Soybean

Effects of Dicamba Micro-Rates On Non-Dicamba-Resistant Soybean

June 6, 2019
The authors report on research to evaluate six micro-rates of two dicamba products on growth, development, and yield of three non-dicamba-resistant soybeans at three growth stages of application: second trifoliate (V2), beginning flowering (V7/R1), and full flowering (R2).

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