Julie Peterson - Extension Entomologist

Julie Peterson

faculty
Work
402 W State Farm Rd North Platte NE 69101-7751
US
Work 308-696-6704 On campus, dial 7-6704

Faculty Bio
CW Welcome to Julie Peterson
Twitter: @PetersonInsects

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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Western bean cutworm adult

Degree-days for Prediction of Western Bean Cutworm Flight

July 1, 2021
Measuring the amount of heat between an upper and lower threshold to which an insect has been exposed, degree-days models can provide a high level of precision in predicting western bean cutworm peak flight.

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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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Army cutworms

Army Cutworm Scouting Urged in Western Nebraska Wheat and Alfalfa

March 31, 2021
With Army cutworms sightings reported from in Kansas, Extension experts encourage scouting efforts begin in Nebraska's fields — particularly in the west.

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Overwintering sawfly larva
The recent temperature extremes will not provide adequate control of pests such as this overwintering sawfly larva.

How Have the Cold February Temperatures Affected Insect Overwintering in Nebraska?

February 26, 2021
Extension specialists detail what effect February's bitter temperatures and snow cover may have on overwintering insects in Nebraska.

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Spider mite damage to soybean leaves.
Spider mite damage to soybean leaves.

Identifying Spider Mite Damage and the Species Responsible

July 22, 2020
We are starting to get more reports of spider mites damaging corn and soybeans in Nebraska. Because many other things can cause similar discoloration, it is important to check leaves closely to make sure mites are actually causing the damage.

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Figure 1. Twospotted spider mites on a leaf and in a web. Often spider mites may be almost imperceptible on a leaf, but before more visible against their silk-like webs. (Photos by Jim Kalisch)
Figure 1. Twospotted spider mites. Almost microscopic in size, the spider mites may be imperceptible on a leaf, but become more visible against its silk-like webs. (Photos by Jim Kalisch)

Managing Spider Mites in Corn and Soybean

July 22, 2020
Recommendations for managing spider mites in corn and soybean, including treatment thresholds, insecticides as well as discussions on the potential impact of beneficial insects, diseases, and insecticide applications.

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