Pest Management

Insects in a line on flat surface
Figure 1. Wheat stem sawfly adult (left) and the two species of Bracon parasitoids (middle and right) that are commonly found parasitizing wheat stem sawfly larvae in Nebraska. (Photo by Jeff Bradshaw)

Wheat Stem Sawfly Flights Peaked, New Reports of Range Expansion

June 12, 2024
In addition to confirming the presence of wheat stem sawfly in new Nebraska counties this year, Nebraska Extension anticipates fairly high pressure from the crop pest this growing season.

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Soybean gall midge larvae on stem

Soybean Gall Midge Adult Activity Detected in Nebraska

June 5, 2024
Soybean gall midge has been detected recently in several locations across eastern Nebraska. This article provides information to growers on how to determine if an application is necessary.

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Leafy spurge closeup
Leafy spurge spreads aggressively and is difficult to control once established. Several herbicides are labeled for control of this weed, but continued monitoring and retreatments are necessary for best results.

Pasture and Forage Minute: Controlling Leafy Spurge and Alfalfa Weevil, Planting Warm-season Annuals

May 28, 2024
Strategies for reducing spread of leafy spurge and scouting for alfalfa weevil, plus insights on selecting and planting warm-season annuals.

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Soybean seedling damaged by pillbugs

Pillbugs Causing Injury to Soybean Crops in Nebraska

May 23, 2024
Management of pillbugs is challenging. While some insecticides and planting strategies may help control pillbug populations, producers should carefully weigh the pros and cons of each approach.

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Silage pit on farm covered with tires
Once silage is exposed to oxygen, its quality can decrease quickly. For best results, don’t expose more than three days’ worth of a pile at a time.

Pasture and Forage Minute: Retaining Silage Quality During Feedout, Grasshopper Management

May 21, 2024
Tips on retaining silage condition during feedout, planning the optimal time for grass hay harvest, and controlling grasshopper in rangeland and forages.

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Closeup of pesticide application on wheat field
For concerns regarding the use of chlorpyrifos on crops during the 2024 growing season, producers should contact their local extension educator for assistance.

Current Use of Chlorpyrifos and Food Tolerances

May 9, 2024
Nebraska Extension educators share guidance on the use of chlorpyrifos products on food and feed crops in the U.S.

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Ana Vélez looks through container of insects to camera in lab
Ana Vélez, associate professor of entomology, directs multiple projects in her lab, researching new genetic tools to help combat the western corn rootworm, one of the world's most devastating crop pests. (Photo by Craig Chandler, University Communication and Marketing)

Vélez is a Leader in Genetic Technology to Contain Corn Rootworm

May 2, 2024
Husker scientist Ana Maria Vélez is pioneering a genetic technology that increases larvae mortality to suppress western corn rootworm, which annually causes up to $2 billion in yield loss and control costs in the Corn Belt.

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Men and women stand around tables looking at container plants
Attendees of the 2023 crop scout training course examine plants during one of the hands-on activities. (Nebraska Extension photo)

Nebraska Extension Offers Introductory-level Crop Scout Training May 21

May 1, 2024
The 2024 training course will review a wide variety of crop scouting concerns, such as drone scouting best practices, identifying nutrient deficiencies and insect damage in corn and soybean, and detecting weed seedlings.

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