Weed Management

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 Re-Affirms Enlist Duo for GE Crops and Proposes Amended Registration

November 1, 2016

Enlist Duo containing the choline salt of 2,4-D and glyphosate was first registered in 2014 for use in genetically engineered corn and soybean in select states, including Nebraska.  After granting the registration, EPA learned that the registrant had made claims of synergy between the ingredients in the herbicide’s formula that had not been shared with EPA at the time of registration.

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Figure 1. Marestail seedling growing in a no-till field. Due to its small size in the fall, pay special attention during scouting, especially in no-till fields where residue can hide seedlings.during scouting.
Figure 1. Marestail seedling growing in a no-till field. Due to its small size in the fall, pay special attention during scouting, especially in no-till fields where residue can hide seedlings.

Fall is Optimal for Marestail Management

October 28, 2016
With corn and soybean harvest nearing completion in Nebraska this is a great time to begin scouting fields for winter annual weeds like marestail. Timing is critical to successful control of marestail, especially in no-till soybeans as many populations have evolved resistance to glyphosate and ALS-inhibiting herbicides.

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Figure 2. Cheatgrass seed heads (or panicles) as they mature. The panicles on the left are shattering, the second on the left is mature but not shattering, the two on the right are immature.
Figure 2. Cheatgrass seed heads (or panicles) as they mature. The panicles on the left are shattering, the second on the left is mature but not shattering, the two on the right are immature.

Nebraska Extension Pest of the Month: Cheatgrass

October 17, 2016
The winter annual weed species cheatgrass is competitive with crops, desirable forage, and native plants and will reduce productivity of crop and range land. Learn how grazing, mowing, and properly timed herbicide application can be integrated to provide effective control.

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Fall Management of Cool-Season Invaders in Pastures

October 12, 2016

When cheatgrass, bromes, and other cool-season plants invade native warm-season grass pastures and rangeland, they shift good grazing away from summer.

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Thistle Control During October

September 21, 2016

It’s thistle time again. Even if they are hard to see, this is the time to control them.

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Weed Control Options in Seedling Alfalfa

September 21, 2016

Late summer plantings of alfalfa tend to have fewer weeds than spring plantings, but this year, fall weeds may be a problem in some fields.

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Controlling Winter Annual Bromes this Fall

September 14, 2016
Early to miid-September is a good time to start controlling winter annual bromes in your pasture.

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