Insect Management

Fall armyworm
Fall armyworm. Photo by Nathan Mueller

Fall Armyworms Damaging Alfalfa in Southeast Nebraska

August 24, 2021
Fall armyworm caterpillars do most of their feeding in the last stage. If you are not watching fields on a regular basis, you may not notice damage or armyworms until they are large and doing significant damage.

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western bean cutworm moth

Scouting and Treatment Recommendations for Western Bean Cutworm

July 15, 2021
The first western bean cutworm moths were captured in University of Nebraska-Lincoln black light traps on June 25-27 at Clay Center, June 26-27 at North Platte, and July 1 at Scottsbluff.

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Western corn rootworm beetle

Scout Now for Corn Rootworm Beetles to Assess Potential Risk of Future Damage

July 14, 2021
Weekly scouting of adult rootworm beetles in July and August will provide the information needed to decide whether rootworm control is needed next year.

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Potato leafhopper

Start Scouting for Potato Leafhoppers in Alfalfa

June 23, 2021
Potato leafhoppers have the potential to injure alfalfa in Nebraska every year and have been reported recently in southeast Nebraska. Generally they are a second and third cutting pest.

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ECB adult female

Light Trap Data Available Online

June 8, 2021
UNL Extension Entomology is monitoring crop insect pests (primarily moths) using black light traps at university facilities at North Platte, Clay Center, Mead and Concord.

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common stalk borer larva

Managing Stalk Borers in Corn

June 7, 2021
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 larvae
Figure 1. Adult and small- to medium-sized larvae of the alfalfa weevil. (Photo by Julie Peterson)

Scouting Advised for Alfalfa Weevil

April 28, 2021
Alfalfa weevils have been reported damaging alfalfa in southeast Nebraska; scouting for this pest is crucial for alfalfa producers over the next few weeks.

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Plant disease photo collage

Sample Testing Underway at Plant and Pest Diagnostic Clinic

April 22, 2021
With operations resuming in full at the Plant & Pest Diagnostic Lab this spring, growers have several options for submitting weed, insect and plant disease samples for testing in Nebraska.

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