Amit Jhala - Extension Weed Management Specialist
Figure 1. Marestail emerging relatively early this year in Nebraska due to plenty of moisture (Photo by Amit Jhala)
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.
Figure 1. Due to plenty of soil moisture this fall, marestail emergence was relatively early and over a longer period, leading to variable sizes of marestail plants that needed to be controlled before planting winter wheat. (Photos by Amit Jhala)
What is your herbicide recommendation for someone who wants to plant wheat, but has a lot of winter annuals coming up, including marestail?
A field of dicamba-injured soybeans is used as an example to demonstrate the forensic analysis method to determine when dicamba exposure occurred.
Dicamba injury in soybean
Growers, crop consultants, and other stakeholders are invited to take an online survey on new soybean production and weed management systems.
The results of a 2015 survey on Nebraska's top weed challenges and how growers and agribusiness were responding was recently published in the journal Weed Technology.
Learn how to examine plant development and use this forensic strategy to determine the approximate calendar date when the plants in your field were likely exposed to dicamba.
There are now five structurally different growth regulator herbicides, each of which affects plant growth differently. Understanding the differences can help you better identify the cause when you find damage in your field.
Figure 1. Suspected off-target dicamba injury to soybean. (Photo by Amit Jhala)
Suspected off-target dicamba injury has been reported in several Nebraska counties.
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