Julie Peterson - Extension Entomologist

Julie Peterson

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

Faculty Bio
CW Welcome to Julie Peterson
Twitter: @PetersonInsects

army cutworms

Cutworm Scouting Urged in Western Nebraska Wheat and Alfalfa

March 23, 2017
Army cutworms are beginning to show up from central Kansas to Chappell. As wheat breaks dormancy, scouting for cutworms is advised from now through April to determine whether treatment is warranted.

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Field pea

Field Pea Seeding Rates, Seeding Depth, and Inoculant

March 13, 2017
Grain-type field peas are a cool season grain crop grown as an alternative for no-till summer fallow in a semiarid cereal-based cropping systems such as wheat-corn-fallow and/or wheat-fallow. They are typically planted in mid-March and harvested late-July. This article reports on research conducted on seeding practices and offers recommendations for producers on the economically optimal seeding rate, seeding depth, and inoculant to grow field peas in western Nebraska.

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field pea comparison
Figure 1. Comparison of water use of two systems -- summer fallow and field peas -- between March 27 and July 20. (Photos by Stranhinja Stepanovic)

Field Pea Production: Rotational Costs and Benefits

March 10, 2017
Research findings show benefits in soil nutrient cycling, water infiltration, and microbial activity from replacing fallow with grain-type field peas in a wheat-fallow rotation in western Nebraska.

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western corn rootworm beetle

Considering Non-Bt Traited Corn in 2017? Plan for More Scouting

February 8, 2017
If you're considering planting non-Bt corn this year, entomologists urge you to plan for the additional pest management practices (and associated costs) you may need to adopt, given this decision.

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Western bean cutworm damaging an ear of corn
Western bean cutworm damaging an ear of corn

Nebraska Perspective on Efficacy of Cry1F Bt Corn Against Western Bean Cutworm

October 21, 2016
While entomologists in the Eastern Corn Belt this month reported reduced efficacy of the Cry1f Bt protein against western bean cutworm in corn, Nebraska growers have been facing this for several years. While Cry1F products will still help control other pests, growers are advised to scout for WBC and determine whether treatment is necessary.

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wheat stem sawfly
wheat stem sawfly

Wheat Insects in 2016

September 1, 2016
The wheat stem sawfly continues to be the predominant insect in wheat and has now been verified in all Nebraska Panhandle counties as well as counties in southwest and south central Nebraska.

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Figure 1. Sugarcane aphids. (Photo credit: Patrick Porter, Texas Cooperative Extension, Bugwood.org)
Figure 1. Sugarcane aphids. (Photo credit: Patrick Porter, Texas Cooperative Extension, Bugwood.org)

Be on the Lookout for Sugarcane Aphids on Sorghum

July 29, 2016
Nebraska grain sorghum producers are being advised to be on the lookout for sugarcane aphids. While this pest hasn't been a problem in Nebraska previously, it is in Kansas and moving north. The sugarcane aphid is light yellow to gray in color, with dark cornicles (“tail-pipes”) at the end of the body and dark tarsi (feet). Adult aphids can be winged or wingless.

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Western bean cutworm feeding in corn
Western bean cutworm feeding in corn

Begin Scouting for Western Bean Cutworm Eggs in Corn

July 8, 2016
The first western bean cutworm moths were captured in University of Nebraska-Lincoln black light traps June 23 at Clay Center, June 27 at North Platte, and June 30 at Scottsbluff. Flights are currently increasing, particularly in North Platte. Scouting should be underway across much of the state.

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