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

Painted lady butterfly
Figure 1. Painted lady butterly (Photo by Jim Kalisch)

Painted Lady Butterflies Are Abundant In Many Areas—What Now?

July 10, 2019
Treatment is not recommended for the painted lady butterfly currently being seen in high numbers and could endanger beneficial insects. Treatment thresholds offer guidance for treating feeding caterpillars.

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Crop progress and conditions for corn from the USDA National Agricultural Statistics Service indicating predicted timing for corn growth stages (2019).

Using Degree-Day Models to Predict Western Bean Cutworm Flights

June 21, 2019
With late planting, slow emergence, and cooler summer temperatures affecting corn development, will corn be spared from western bean cutworm damage in 2019. Unfortunately, models indicate WBC growth is also delayed. See a table of predicted dates for 2019 WBC flights in Nebraska and surrounding states.

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Example of bioassay used for monitoring ECB susceptibility to Bt protein

First ECB Resistance to Bt Corn Reported in Canada

May 22, 2019
The first case of field-evolved resistance of European corn borer (ECB) to Bt transgenic corn has been reported in Canada. What does this mean for Nebraska corn farmers and how can they help maintain resistance here?

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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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Western bean cutworm in corn

The Biology and Management of Ear-Feeding Lepidopteran Pests of Corn in Nebraska

January 9, 2019
A guide to Identification and management of European corn borer (Ostrinia nubilalis), western bean cutworm (Striacosta albicosta), corn earworm (Helicoverpa zea), and fall armyworm (Spodoptera frugiperda).

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Corn earworm larva

What’s New in Entomology: West Central Nebraska

January 9, 2019
A survey of ongoing, new, and potential insect pest threats to crop production in west central Nebraska. This article is from the 2019 Crop Production Clinic Proceedings.

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Corn rootworm

Which Bt Traits Do You Need to Buy?

November 15, 2018
When it comes to buying corn seed, one way to save money is to ensure you are not investing in GMO insect protection traits you do not need for your particular farm or field. This guide can help you determine which traits you need where.

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Western bean cutworm moth
Figure 1. Western bean cutworm moth (Photos by Julie Peterson)

Scouting and Treating Western Bean Cutworm

July 11, 2018
Western bean cutworm egg masses have been reported on field corn in a number of locations across the state this week. Here's what to look for in the field, treatment thresholds and recommendations.

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