Amit Jhala - Extension Weed Management Specialist

herbicide being applied to soybean field

Ninth Circuit Court Orders Cancellation of Three Dicamba Products - Updated

June 6, 2020
On June 8, 2020 the EPA release a statement providing farmers with needed guidance following the Ninth Circuit Court ruling.

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Dicamba damage in soybeans

Ninth Circuit Court Orders Cancellation of Three Dicamba Products

June 5, 2020
The United States Court of Appeals for the Ninth Circuit issued a ruling on June 3, 2020 that immediately cancelled the registration of XtendiMax®, FeXapan®, and Engenia® primarily used in dicamba-resistant soybean, also known as Roundup Ready 2 Xtend® soybean.

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Arrested ears with a ‘primordial tip’ due to pesticide application + NIS prior to tassel

Corn Ear Development Impacts from Post-emergence Pesticide Applications

June 4, 2020
Corn ear abnormalities have been noted the past few years. Tracing back the information on various field calls often pointed to a misunderstanding of proper growth stages when making post-emergence herbicide applications in addition to pre-tassel fungicide and insecticide applications.

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soybean seedling emerging

Q & A: What is Causing Problems with Soybean Emergence?

June 4, 2020
The past two weeks, we’ve received a number of calls regarding injured soybean plants during emergence. Additional questions include “What caused this?” and “Do I need to replant?” The following is what we’ve seen thus far.

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soybean seedlings

Soil Residual Herbicide Options after Soybean Emergence

June 3, 2020
Soybean planting was early this year in Nebraska, but dry soil conditions in most of May resulted in poor activation of pre-emergence herbicides applied in rain-fed fields and subsequently less than expected weed control.

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corn showing various growth stages

Accurately Growth Staging Corn after Lower Leaf Loss and Implication for Post-emergence Herbicide Application

May 29, 2020
After a frost, or hail event, the dead tissue is not able to resurrect itself and is eventually sloughed off as the plant continues to grow. Thus a common question is how do I determine corn growth stage when I can no longer count leaves?

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corn emerging from the ground

Soil Residual Herbicide Options after Corn Emergence

May 28, 2020
Application of soil residual herbicides is important because they deliver a few weeks of residual weed control and aid in weed resistance management by incorporating additional site(s) of action in herbicide program. Several residual herbicides can be applied after corn emergence without injury to corn.

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Palmer amaranth
Palmer amaranth in conventional soybean field is difficult to control (Photo by Amit Jhala).

Palmer Amaranth and Velvetleaf Control in Conventional Soybean Using Overlapping Residual Herbicide Programs

April 30, 2020
With the depressed corn and soybean prices in recent years in the United States, growers have shown interest in conventional soybean. Herbicide programs should be selected carefully that provide season-long weed control.

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