Research Updates

Field tour of purple loosestrife management study
Figure 1. Nebraska research showed the need for multiple years of treatment to achieve complete control of purple loosestrife. Choosing the right herbicide for the job and practicing patience and persistance were key to success. (Photos by Stevan Knezevic)

Research Update: Control of Perennial Invasive Weeds Requires Repeated Herbicide Applications June 4, 2018

Research shows the need for patience and persistence when battling perennial weeds such as purple loosestrife over multiple years. The younger the stand the faster the control was achieved.

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Dry rot canker in sugarbeet
Figure 1. Surface tissues of the dry rot canker rhizoctonia disease first identified in sugarbeet in 1920 are marked by a distinctive series of concentric circles. (Photos by Bob Harveson)

Dry Rot Canker – Obscure, but Returning Rhizoctonia Disease May 23, 2018

Dry rot canker, one of several rhizoctonia diseaes of sugarbeet, has been relatively obscure since first being identified almost a century ago. New technologies, however, have helped to differentiate it from the more common Rhizoctonia root and crown rot disease.

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Buckbrush
Figure 1: Buckbrush (4-year-old plant) in pasture by Niobrara State Park in northeast Nebraska. (Photo by Stevan Knezevic)

Study: Efficacy of Herbicides in Buckbrush Control May 22, 2018

A two-year weed management study in northeast Nebraska evaluated herbicide options for controlling buckbrush, a common perennial weed in Nebraska pastures and rangeland. One herbicide provided year-round control, while several others provided season-long control.

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Cottonwoods
Figure 1. Cottonwood infestation in sub-irrigated meadow. This photo was taken during the period of high water table in early spring. (Photo by Stevan Knezevic)

Research Findings on Chemical Control of Cottonwood May 22, 2018

Cottonwood offers many benefits, but also can be an invasive and difficult-to-control weed. Nebraska researchers studied control efficacy of eight herbicides over two years and found three products provided total control more than a year; however, they also noted a caution for areas with high water tables.

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Windrowing forage wheat in south central Nebraska for processing into wheatlage. (Photos by Todd Whitney)
Figure 1. Cutting and windrowing forage wheat in south central Nebraska for processing into wheatlage. (Photos by Todd Whitney)

Wheat Forage Options and Considerations May 17, 2018

This spring many Nebraska livestock producers facing low forage supplies may be looking for new sources, such as from wheat. This Nebraska research on harvest timing suggests how to optimize feed value from wheat forage.

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Field photos of the three herbicide treatments tested.
Figure 1. Three herbicide treatments were applied to determine whether a pre-emergence herbicide affected the critical period of weed control. From left, the plots show: 1) Corn at V12 that had not received a pre-emergence herbicide; 2) corn at V12 that received an atrazine treatment; corn at V12 that received an Acuron treatment

Preemergence Herbicides Influence the Critical Period for Weed Removal in Roundup Ready Corn May 11, 2018

Researchers tested three preemergence herbicide strategies in Roundup-Ready Corn to identify how their application affected the critical period of weed control — the period when weed control is essential to avoid yield loss.

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Land-applied manure
Research to validate or adapt canopy sensor-guided in-season N application practices for manured fields was evaluated in two trials.

Adaptation of Canopy Sensor-Guided In-Season Nitrogen Application for Manured Fields May 8, 2018

Land application of organic materials for soil management in Nebraska is important.

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Improved Use Efficiency of Applied Organic Nitrogen May 8, 2018

Land application of organic materials for soil management in Nebraska is important.

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