Herbicide

Sprayer in the field

Overview of Production Cost Trends

July 9, 2018
An overview of short- and long-term production cost trends and how to use this information for planning for 2019 crops.

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Dicamba injury to soybean
Figure 1. Suspected off-target dicamba injury to soybean. (Photo by Amit Jhala)

Dicamba Off-Target Injury Reports in Nebraska

June 29, 2018
Suspected off-target dicamba injury has been reported in several Nebraska counties.

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Planning Ahead for Winter Wheat: Review Corn and Soybean Herbicide Programs

April 13, 2018
If you're considering planting winter wheat next fall, be sure to review the corn and soybean herbicide programs you plan to use this spring to avoid rotation restrictions that would limit your cropping options.

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Pulse width modulation sprayer
Figure 1. The Capstan PinPoint® pulse-width modulation (PWM) sprayer used for this research is shown at the Palmer amaranth field site located near Beaver City. (Photos by Thomas Butts)

Precise Spray Droplet Sizes for Optimizing Herbicide Applications

April 10, 2018
Achieving the most effective and consistent spray droplet size helps provide for precision application of pesticides, which saves input costs and reduces off-target movement. University researchers using a pulse-width modulation sprayer studied the best droplet size for effective weed control with six herbicides used in Nebraska crop production.

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Figure 1. (left) Carryover injury of atrazine (2 lb ai/ac applied in the fall) and (right) mesotrione (applied in the spring) on field peas.
Figure 1. Carryover injury of atrazine (2 lb ai/ac applied in the fall) and mesotrione (applied in the spring) on field peas.

Field Peas—A Guide to Herbicide Carryover And Herbicide Efficacy

February 22, 2018
How to avoid herbicide carryover injury when designing an effective herbicide program for crop rotations integrating field peas.

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Herbicide label section
Figure 1. A careful read of the herbicide label provides important legal and educational information for your weed management program. An example of a group 2 herbicide from the sulfonylurea family and a list of other herbicides that belong to the same group and family. Paying attention to the group name makes it easier to ensure that herbicide(s) from the same group are not repeated within a growing season or the next year.

What Should You Look For in a Herbicide Label

January 26, 2018
A herbicide label is a legal document providing important information about a herbicide, its appropriate use, and the precautions needed to avoid off-target movement and to protect environmental quality. It can also help you achieve the most efficient and sustainable application. Learn more about what to watch for on herbicide product labels.

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Dicamba injury at various growth stages
Dicamba injury at various growth stages

Research on the Impact of Dicamba Micro-Rates on Non Dicamba-Tolerant Soybeans

January 10, 2018
Research at the university's Haskell Ag Lab at Concord in 2016 and 2017 studied the effects of microrates of two dicamba products applied at one of three soybean growth stages. The trials showed that non-dicamba tolerant soybeans were sensitive to even very low micro-rates of Engenia and XtendiMax; response varied according to amount and growth stage, with exposure at later stages having less effect.

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Dicamba injury
In Figure 1a the field on the right, with heavier crop residue, shows dicamba-tolerant soybeans that had been sprayed with new generation dicamba. The field on the left, non-dicamba-tolerant soybeans planted side-by-side without a buffer, shows symptoms of injury caused by dicamba, the consequences of spray drift or volatilization. Figure 1b illustrates how dicamba affects newer growth more than older leaves. (Photos by Tim Creger, Nebraska Department of Agriculture)

Dicamba Injury Symptoms on Sensitive Crops

June 28, 2017
Dicamba-resistant soybean, genetically engineered to provide resistance to dicamba and glyphosate, was made commercially available for the 2017 growing season. This article looks at potential dicamba injury to sensitive crops and plants.

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