Insect Management

Each year more than 100 research trials are conducted at the South Central Agriculture Laboratory near Harvard. The Aug. 29 SCAL Field Day invites the public to view and learn about the most recent research from UNL and USDA scientists.
Figure 1. Each year more than 100 research trials are conducted at the South Central Agriculture Laboratory near Harvard. The Aug. 29 SCAL Field Day invites the public to view and learn about the most recent research from UNL and USDA scientists.

View Latest Crop and Pest Research at South Central Ag Lab Aug. 29 August 17, 2018

Tour field trials focused on irrigation and water management, soil fertility, entomology, weed science, cropping systems, and disease management at this year's South Central Ag Lab Field Day Aug. 29.

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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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European corn borer "shot-hole" damge to corn leaves

Scouting and Treatment of First Generation European Corn Borer June 12, 2018

While European corn borer numbers have greatly decreased regionally since the introduction of the first Bt corns, local populations may still cause damage on untraited corn such as popcorn or white corn or in field planted to non-BT corn to take advantage of lower seed costs. These fields should be scouted now.

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burrower bug nymphs

Burrower Bugs in Soybeans June 12, 2018

White-margined Burrower Bug nymphs have been identified in high numbers in a soybean field near Beatrice. This pest is seen periodically in Nebraska in a variety of crops.

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Differential grasshopper
Figure 1. The differential grasshopper, one of four grasshopper species in Nebraska that feed on crops. The others are the twostriped, redlegged, and migratory grasshoppers.

Grasshopper Control Most Effective Early Season June 12, 2018

Heavy populations of immature grasshoppers were found in field borders in south central Nebraska corn fields this week. Scout and if numbers warrant, treat now when they're small and concentrated in borders. See story for identification tips, treatment thresholds, and control recommendations.

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Wheat stem sawfly video screen capture

Wheat Stem Sawfly Numbers Up in the Panhandle June 6, 2018

Video: Populations of wheat stem sawflies, a serious pest of wheat in western Nebraska, are at high numbers this year. Surveys are underway in wheat fields, grasslands and pastures to evaluate grass hosts for the pest and its parasitoids.

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Insect light trap

Insect Light Trap Data Available for 3 Sites June 6, 2018

UNL Extension Entomology is monitoring crop insect pests (primarily moths) using black light traps at the Haskell Ag Laboratory near Concord, the South Central Ag Laboratory near Clay Center, and the West Central Research and Extension Center near North Platte.

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wireworm

Scout Emerging Corn for Insects; Don't Take Protection for Granted May 16, 2018

As corn begins to emerge, be alert to the potential for damage from early season insects such as cutworms, wireworms, white grubs or wheat stem maggot. Seed treatments provide some protection, but can be overwhelmed in some circumstances, allowing losses.

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