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

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

Identifying Spider Mite Damage and the Species Responsible

July 26, 2022
With growing reports of spider mites damaging corn and soybeans in Nebraska, it's important to check leaves closely, as many other crop issues can cause similar discoloration.

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Twospotted spider mites on leaf
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 26, 2022
Recommendations for managing spider mites in corn and soybean, including treatment thresholds and insecticides, as well as discussions on the potential impact of beneficial insects, diseases and insecticide applications.

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Western corn rootworm beetle

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

July 19, 2022
Weekly scouting of adult rootworm beetles in July and August will provide the information needed to decide whether rootworm control is necessary next year.

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western bean cutworm moth

Scouting and Treatment Recommendations for Western Bean Cutworm

July 13, 2022
Scouting should be prioritized in fields that are at the preferred growth stage for egg-laying and/or do not have the VIP3A Bt trait to protect them from western bean cutworm injury.

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Potato leafhopper

Watch for Aphids and Potato Leafhoppers in Nebraska Alfalfa

June 22, 2022
Nebraska growers should begin scouting for potato leafhoppers and spotted alfalfa, as these pests have been spotted in alfalfa fields in Gage County and Scottsbluff, respectively.

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Western bean cutworm adult

Degree-days for Prediction of Western Bean Cutworm Flight

June 21, 2022
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

May 2, 2022
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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Pesticide application
Producers will not be allowed to apply chlorpyrifos on any food or feed products after Feb. 28, 2022.

Food Tolerances Revoked for Chlorpyrifos — What to Know

February 22, 2022
Producers will not be allowed to apply chlorpyrifos on any food or feed products after Feb. 28, 2022, and any food items treated with chlorpyrifos products after that date are not permitted to be sold.

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