Julie Peterson - Extension Entomologist

Julie Peterson

Faculty Bio

CW Welcome to Julie Peterson

Twitter: @PetersonInsects

Fall armyworm
Fall armyworm

Which Bt Traits Do You Need to Purchase? October 12, 2017

When it comes to buying corn seed, avoid investing in GMO insect protection you don't need. This guide looks at available traits and which proteins are effective on which pest species to help growers select the product best suited to their fields.

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Western bean cutworm colony

Establishing a Western Bean Cutworm Colony in the Laboratory October 4, 2017

The western bean cutworm is an important pest of corn and dry beans in Nebraska and is a major focus of research at the Agroecosystems Entomology Laboratory at the West Central Research and Extension Center in North Platte. Because WBC has only one generation per year, researchers are now growing their own population to use in laboratory and field studies.

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Researching What Could be Tomorrow's Problem Corn Ear Pest September 13, 2017

Nebraska and Brazilian entomology researchers have joined to study current and expected corn insect pests and how management strategies can be changed to address population shifts.

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western bean cutworm eggs and larvae

Scouting and Treatment Recommendations for Western Bean Cutworm July 11, 2017

Scouting is urged for Western bean cutworm in corn as moth flights are active and particularly heavy in south central Nebraska this week. This article includes trapping reports and recommendations for scouting and treatment.

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Western bean cutworm eggs and larva

Using Degree-Day Models to Predict Western Bean Cutworm Flights June 15, 2017

Learn how degree-days are calculated and used to predict insect development and specifically, what they indicate for the timing of western bean cutworm development in Nebraska this year.

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alfalfa weevils

Scouting Advised for Alfalfa and Clover Leaf Weevils April 20, 2017

Alfalfa weevils have been reported damaging alfalfa in north central Kansas and western Nebraska. As temperatures warm up, expect to see alfalfa weevil larvae in southern Nebraska and slightly later, in northern Nebraska. Even with the pressure of planting row crops, it is essential that producers growing high quality alfalfa hay make time to monitor fields for weevils now and over the next few weeks. See the article for a table of treatment thresholds for various alfalfa prices.

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Jonathan Lundgren
Jonathan Lundgren

Ecological Pest Management and Beneficial Insects Topics of April 14, 15 Programs April 6, 2017

Jonathan Lundgren will be the keynote speaker for the Ecologically Based Pest and Disease Management program April 14 at North Platte.  It will be held from 10 a.m. to noon at the West Central Research and Extension Center, 402 W. State Farm Road.

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western bean cutworm in corn
Figure 1. (left) Western bean cutworm causing feeding damage in corn. (Photo by Jim Kalisch and Silvana Paula-Moraes) (right) A green lacewing beneficial insect eating western bean cutworm eggs. (Photo by Julie Peterson)

Which Bt Traits Do You Need to Purchase? March 24, 2017

When it comes to buying corn seed, one way to save money can be to ensure that you don't invest in GMO insect protection traits that you do not need for your particular farm or field. Which corn rootworm, western bean cutworm, or European corn borer traits do you need? This article can help you determine which of the nine types of Bt proteins might best serve your needs.

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