Weed Management

Over a Half Century of Trying to Solve Weed Management Challenges

January 9, 2019
Emeritus Extension Professor Bob Klein discusses the evolution of weed management systems during his career as a university weeds specialist.

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Corn yield loss as influenced by three herbicide treatments

Critical Time for Weed Removal in Corn and Soybean is Delayed by PRE-Herbicides

January 9, 2019
Understanding the critical time for weed removal in corn and soybean would not only ensure effective weed removal and minimize unnecessary weed control inputs, but could potentially help minimize the development of herbicide resistance in weeds.

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Dry bean weed management trial

The Importance of Early Season Weed Control

January 9, 2019
Do early season weeds have the same impact as later season flushes? Researchers here report on a 2018 study conducted in dry bean to compare how soon after planting crop yield was impacted by weed presence.

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Soybean damage from application of micro-rates of dicamba pesticide.

Effects of Dicamba Micro-Rates on Yields of Non-Dicamba Soybeans

January 9, 2019
This study looks at the sensitivity of non-DT soybean types (Conventional, Liberty Link, and Roundup Ready) to micro-rate applications of Clarity, Engenia, and XtendiMax at several growth stages.

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Trial studying efficacy of products on Palmer amaranth

Palmer Amaranth Control in Dry Bean

January 14, 2019
Residual herbicides applied at or before planting are critically important to controlling emerged Palmer amaranth in dry bean. Research at the Panhandle REC assessed the efficacy of PRE and pre-plant incorporated (PPI) residual herbicide programs.

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Visual evaluation of waterhemp growth 21 days after an atrazine application.

Research Report: Prevalence and Mechanism of Atrazine Resistance in Waterhemp from Nebraska

October 26, 2018
Researchers studied waterhemp populations in eastern Nebraska to evaluate the efficacy of PRE and POST herbicide applications and the mechanism of atrazine resistance. Here's what they found and take-home messages to apply to your operation.

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Marestail
Figure 1. Marestail emerging relatively early this year in Nebraska due to plenty of moisture (Photo by Amit Jhala)

Management of Glyphosate-Resistant Marestail in Fall

October 25, 2018
For successful marestail management in the fall, apply herbicides after harvest while weather conditions remain favorable (air temperature above 50°F). Effective control now may negate the need for an early spring burndown application.

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Nebraska Extension Weed Science School

Weed Science School Oct. 31 near Mead

October 11, 2018
Update your weed science knowledge and skills when university, government, and industry speakers join to address current weed science issues and recommendations for improving herbicide applications.

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