Amit Jhala - Extension Weed Management Specialist

Glyphosate-resistant Palmer amaranth in corn
Figure 1. Figure 1. Glyphosate-resistant Palmer amaranth infesting a corn field in south central Nebraska. (Archive photo by Amit Jhala)

Glyphosate-Resistant Palmer Amaranth Field Day July 10 June 7, 2019

Jason Norsworthy, a weed scientist from the University of Arkansas, will be the keynote speaker at this year's Glyphosate-Resistant Palmer Amaranth Management Field Day on Wednesday, July 10, near Carleton.

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Part of a row of corn struggling to survive
These plants, in a Clay County corn field, are in deep water and deep trouble! The bright vibrant greens of typical V2 to V3 seedlings are replaced with sickly yellows, indicating plummeting chlorophyll readings and photosynthesis. Roots of these oxygen-starved plants are no longer growing and are likely dying. The soil to which they are anchored has changed dramatically and full plant recovery is likely not possible. (Photos by Roger Elmore)

Corn Establishment and Growth in Saturated Soils: A Brief Review of New Research May 31, 2019

How long can seedling corn survive under flooded conditions? A review of current scientific literature offers new understandings of when and how plant injury occurs and what factors affect it.

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Marestail

Control of Glyphosate-Resistant Marestail with Post-Emergence Herbicides in Corn and Soybean May 29, 2019

Several post-emergence herbicides are available for control of marestail where spring weather may have interfered with application or efficacy of early spring burndown and/or pre-emergence herbicide applications.

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Nebraska Extension Weed Management Specialist Amit Jhala describes ongoing research on new technologies and practices at a previous Weed Management and Cover Crop Field Day. This year's event will be June 26.

South Central Weed Management Field Day is June 26 May 14, 2019

On-site demonstrations of herbicides for weed control in corn, popcorn, and soybean and a study on terminating cereal rye before and after planting soybean are among those to be featured at the university's South Central Agricultural Laboratory near Clay Center.

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Tavium: A New Premix of Dicamba and S-Metolachlor is Labeled April 25, 2019

A new dicamba-based herbicide, Tavium, has been approved for use in Roundup Ready 2 Xtend soybean (dicamba/glyphosate-resistant soybean). Like the other dicamba-based soybean herbicides, it requires special training before it can be used.

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Glyphosate-resistant ragweed in corn

Planting Interval of Corn, Soybean, and Sorghum after 2,4-D or Dicamba Burndown Application April 18, 2019

With flood, cold, and wet conditions in March/April, many producers are facing a smaller than expected window for making their burndown herbicide applications and should carefully consider required planting intervals when selecting which product to use in which crop.

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Cover crops and weeds in early spring
Figure 1. When using a burndown treatment to terminate cover crops and weeds this spring, planting intervals often may negate the use of many dicamba products prior to soybean planting. (Photos by Amit Jhala)

Which Dicamba Product Should I Use as a Burndown Before Planting Soybean? April 16, 2019

Several growers have asked: Can dicamba products such as Banvel, Clarity, and DiFlexx be applied to terminate broadleaf cover crop species and broadleaf weeds immediately before planting soybean?

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Nebraska CropWatch podcast cover image

CropWatch Podcast on Spring Burndown Applications March 22, 2019

On the latest Nebraska CropWatch podcast Extension Educator Michael Sindelar interviews Weed Specialist Amit Jhala about factors to address with burndown herbicide applications.

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