Insect Management

map showing GDD accumulation in Nebraska

Common Stalk Borer Scouting Should Start in Southern Nebraska

June 3, 2020
This week's map indicates that enough degree days have accumulated for common stalk borer eggs to have hatched across the state. It's time to start scouting.

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common stalk borer larva

Managing Stalk Borers in Corn

May 22, 2020
Stalk borer damage in corn commonly is confined to plants in the first few rows near field margins, fence rows, grass terraces, and waterways. Understanding the common stalk borer life cycle and behavior is critical to selecting management practices to reduce damage in corn.

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alfalfa weevil lifestages

Scouting Advised for Alfalfa Weevil

May 6, 2020
Alfalfa weevils have been reported damaging alfalfa in north central Kansas. As temperatures warm up, expect to see alfalfa weevil larvae in southern Nebraska and slightly later, in northern Nebraska.

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CW Podcast: Late-Maturing Crops and Insects

September 13, 2019
In this month’s CropWatch Podcast Extension Educator Michael Sindelar is joined by entomologist Robert Wright to discuss insect issues in late maturing corn and soybeans.

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Wireworms

Scout Emerging Corn for Insects; Don’t Assume Protection

May 22, 2019
As corn begins to emerge, be alert to the potential for damage from early season insects such as cutworms, wireworms, white grubs, or other insects.

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Culex mosquito
Culex mosquito

Best Repellents for Mosquitoes and Ticks

April 29, 2019
May and June are prime months when outdoor blood feeders — like ticks and mosquitoes — are active in Nebraska. Learn which repellents are most effective and how long they're effective.

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Western bean cutworm eggs (Photo by Jen Bruggeman)
Western bean cutworm eggs (Photo by Jen Bruggeman)

Introducing the 'Western Bean Cutworm Central' Webpage

March 8, 2019
This new webpage is designed to serve as a clearinghouse of information related to western bean cutworm biology, behavior, and management in both corn and dry bean agroecosystems.

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Cover of the 2019 Guide for Weed, Disease, and Insect Management in Nebraska

Weed, Disease, and Insect Guide Updated for 2019

February 1, 2019
The 346-page comprehensive pest management guide includes new herbicides for field crops and updated herbicide, fungicide, and insecticide efficacy tables. It also includes updated information on how to control resistant weeds, especially Palmer amaranth.

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