Herbicide

Corn field with severe weed population
Figure 1. A corn field in south central Nebraska without preemergence herbicide application. Applying a well-timed postemergence herbicide will be the only control option. (Photos by Amit Jhala).

Consider Corn Growth Stage When Applying Postemergence Herbicides June 14, 2017

When applying postemergence herbicides, consider corn growth stage, weed species present, and crop and weed heights. The article includes how to determine corn growth stage, recommendations to avoid problems, and a table of application restrictions for common postemergence herbicides.

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Weeds in corn
Figure 1. A wet soybean field in south-central Nebraska. A pre-emergence herbicide was applied but due to continued excessive rainfall, the herbicide was washed away and weeds have started emerging.

Effect of Excessive Rainfall on Efficacy of Residual Herbicides Applied in Corn and Soybean May 23, 2017

How excessive rainfall may affect the efficacy of residual herbicides is complex and influenced by multiple properties of the soil and the herbicide applied.

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Soybean field treated with Sonic herbicide

New Soybean Herbicides for 2017 March 6, 2017

Information on new soybean herbicides, incuding their modes of action

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New Corn Herbicides for 2017 February 24, 2017

Information on new herbicides for corn that will be available for the 2017 crop production season.

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Section of the Herbicide Classification Chart
Section of the Herbicide Classification Chart

2017 Chart for Selection of Herbicides Based on Site of Action February 2, 2017

Management of glyphosate-resistant weeds is now the greatest challenge for Nebraska crop producers and land managers. The 2017 Herbicide Classification Chart from Take Action Against Weeds is an easy means for identifying herbicide site of action to avoid repeated use of the same action on the same field.

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CW Q&A
CW Q&A

Q&A: Which formulation of 2,4-D is preferred for fall application? November 4, 2016

Answers to three grower questions on fall herbicide application in row crops.

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EPA Extends Comment Period on Proposed Dicamba Registration for GE Crops April 28, 2016

In response to requests, the EPA announced April 28 in an EPA Update that it is extending for an additional 30 days the public comment period on the proposed regulatory decision to register dicamba to control weeds in cotton and soybean genetically engineered (GE) to tolerate dicamba.

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How Cool, Rainy Weather Affects Burndown Herbicide Efficacy April 22, 2016

Due to rain the last couple of weeks and more forecast for next week, some growers may not be able to apply burndown herbicides when they would like to for utmost effectiveness. Low temperatures and wet weather can negatively impact herbicide performance.

Rainfast Period

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