Weed Management

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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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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Control of Glyphosate-Resistant Marestail with Post-Emergence Herbicides in Corn and Soybean

May 29, 2019
Several post-emergence herbicides are available for control of marestail where spring weather may have interfered with application or efficacy of early spring burndown and/or pre-emergence herbicide applications.

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Nebraska Extension Weed Management Specialist Amit Jhala describes ongoing research on new technologies and practices at a previous Weed Management and Cover Crop Field Day. This year's event will be June 26.

South Central Weed Management Field Day is June 26

May 14, 2019
On-site demonstrations of herbicides for weed control in corn, popcorn, and soybean and a study on terminating cereal rye before and after planting soybean are among those to be featured at the university's South Central Agricultural Laboratory near Clay Center.

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