Julie Peterson - Extension Entomologist

Julie Peterson

faculty

Assoc Professor Entomology University of Nebraska–Lincoln
Courtesy Assoc Professor West Central Research & Extension Center University of Nebraska–Lincoln

Work

402 W State Farm Rd North Platte NE 69101-7751

Work 308-696-6704 On campus, dial 7-6704

julie.peterson@unl.edu

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Faculty Bio
CW Welcome to Julie Peterson
Twitter: @PetersonInsects

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.

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.

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.

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.

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.

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.

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.

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.