Stevan Knezevic - Extension Weed Management Specialist

Stevan Knezevic

faculty
Work Keim Hall (KEIM) 102C
Lincoln NE 68583-0915
US
Work 402-472-6498 On campus, dial 2-6498

Faculty Bio

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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Field trial with one of the herbicides tested in popcorn

Weed Control and Response of Yellow and White Popcorn Hybrids to Herbicides

September 25, 2019
Research-based information on weed control and response of eight commercially available popcorn hybrids to several herbicides labeled for popcorn in Nebraska.

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Popcorn at V9 growth stage where PRE herbicide had been applied

Pre-emergence Herbicide Delays the Critical Time of Weed Removal in Nebraska Popcorn

September 9, 2019
Understanding the critical time of weed removal (CTWR) and how a pre-emergence herbicide application can shift it is helpful for designing the most efficient weed management program in popcorn.

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Suspected off-target dicamba injury to soybean. Cupped leaves are often indicative of dicamba injury. (Photos by Amit Jhala)
Figure 1. Suspected off-target dicamba injury to soybean. Cupped leaves are often indicative of dicamba injury. (Photos by Amit Jhala)

Dicamba Off-Target Injury Continues in 2019 in Nebraska

August 16, 2019
As the crop season progresses, questions about dicamba off-target injury in soybean, broadleaf crops, and trees are increasing in Nebraska. If you suspect off-target injury in one of your fields, here's a reminder of what to do.

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Registration Extended for Flame Weeding Workshop

August 9, 2019

The registration deadline for the Nebraska Extension FlameWeeding Workshop has been extended to Thursday, Aug. 15.

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Flame Weeding Workshop Aug. 19 at ENREC

July 22, 2019
Propane-fueled flame weeding is used in organic farming and interest in it is increasing among conventional producers due to increased weed resistance to herbicides and the costs of GMO crop seed.

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Register by July 30 for an Aug. 19 Flame Weeding workshop to be held at UNL ENREC.
Register by July 30 for an Aug. 19 Flame Weeding workshop to be held at UNL ENREC.

Register for Flame-Weeding Workshop by July 30

July 15, 2019

A full-day Flame Weeding Workshop will be held August 19 at the Eastern Nebraska Research and Extension Center near Mead.

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