Robert Wright - Extension Entomologist

Robert Wright

faculty
Work Entomology Hall (ENTO) 213
Lincoln NE 68583-0816
US
Work 402-472-2128 On campus, dial 2-2128

icon-academic-capEducation

  • BA, University of California, 1975
  • MS, University of Arizona, 1977
  • Ph D, North Carolina State University, 1981

icon-chat-userCourses

  • ENTO 888, MS Degree Project, Fall 2018

Faculty Bio
Twitter: @BobWrightUNL

Guide to estimating soybean leaf defoliation

Estimating Soybean Leaf Defoliation

July 26, 2017
Growers are reporting finding painted lady caterpillars and silver spotted skipper caterpillars in soybeans. This guide can help estimate leaf defoliation in soybean, key to determining whether treatment is necessary.

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Western corn rootworm beetle

Scout Now for Corn Rootworm Beetles to Assess Potential Risk of Future Damage

July 19, 2017
Western corn rootworm beetles have started emerging in southeastern and south central Nebraska and weekly scouting is recommended to help determine the need for rootworm control next year. Beetle emergence and scouting is slight delayed for growers in northeast Nebraska.

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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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Damage to corn leaf by western corn rootworm
Figure 1. Damage to corn leaf caused by western corn rootworn. (Photo by Robert Wright)

Time to Scout for Western Corn Rootworm Beetles

June 29, 2017
Western corn rootworm beetles began emerging in southeast and south central Nebraska this week. Before corn silks emerge, they're apt to feed by scraping the surface tissue, leaving a white parchment-like appearance.

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Wheat stem maggot fly

Adult Emergence of Suspected Wheat Stem Maggot from Infested Corn Plants

June 22, 2017
University researchers are studying why suspected wheat stem sawflies are being found again this year in Nebraska corn, previously thought to be a non-host. Major yield loss is not expected in corn from this pest.

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Differential grasshopper

They're Back ... Time to Scout Field Borders for Grasshoppers

June 22, 2017
Populations of immature grasshoppers have been reported in areas bordering crop fields. If you're seeing one of the four species that harm cropland noted here, control may be warranted. Treatment is most effective when grasshoppers are small and still contained in field borders.

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Japanese Beetle

Japanese Beetles Emerging in Corn and Soybean

June 19, 2017
Corn and soybean growers should be scouting for Japanese beetles, which have started emerging in eastern Nebraska. First identified in counties along the state's eastern border several years ago, the beetles were found as far west as Lincoln County in 2016.

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Corn damaged by wheat stem maggot

Suspected Wheat Stem Maggot Damage in Corn following Cover Crops

June 13, 2017
Ag professionals across central and eastern Nebraska are reporting insect damage to corn following rye and wheat cover crops, likely from the wheat stem maggot. A recent field survey found stand losses in fields ranged from 2%-30% on a whole-field basis.

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