Robert Wright - Extension Entomologist

Robert Wright

  • Emeritus Professor University of Nebraska–Lincoln
Work Entomology Hall (ENTO) 213
Lincoln NE 68583-0816
Work 402-472-2128 On campus, dial 2-2128


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


  • ENTO 888, MS Degree Project, Fall 2018

Faculty Bio
Twitter: @BobWrightUNL

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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Handy Bt Trait Table Revised for 2017

January 19, 2017
The Handy Bt Trait Table for US corn production has been updated for 2017. It includes information on all registered Bt corn hybrids commercially available and summarizes which insects are controlled by which hybrids, which Bt and herbicide tolerance traits are expressed in different hybrids, and the Insect Resistance Management Refuge requirements associated with these hybrids.

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Proper cleaning and bin preparation will help assure that grain going into storage will remain in good condition.

Prepare Grain Bins and Equipment For Harvest

August 31, 2016
Proper cleaning of all harvesting equipment and grain bins and preparation of bins is a key to preserving stored grain quality. See these recommendations and lists of commonly used products for treating bins.

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Soybean stem borer larva
Soybean stem borer larva

Soybean Stem Borers Feeding in South Central Nebraska

August 16, 2016
We are starting to see dead leaves caused by feeding of soybean stem borer larvae in south central Nebraska soybeans. No control measures are appropriate at this time, but monitor your fields and be aware that high populations of soybean stem borers may predispose the field to lodging and make harvest difficult.

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Twospotted spider mites on leaf
Figure 1. Twospotted spider mites. Almost microscopic in size, the spider mites may be imperceptible on a leaf, but become more visible against its silk-like webs. (Photos by Jim Kalisch)

Managing Spider Mites in Corn and Soybean

July 26, 2022
Recommendations for managing spider mites in corn and soybean, including treatment thresholds and insecticides, as well as discussions on the potential impact of beneficial insects, diseases and insecticide applications.

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Spider mite damage to soybean leaves.
Spider mite damage to soybean leaves.

Identifying Spider Mite Damage and the Species Responsible

July 26, 2022
With growing reports of spider mites damaging corn and soybeans in Nebraska, it's important to check leaves closely, as many other crop issues can cause similar discoloration.

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Adult differential grasshopper
Adult differential grasshopper

Watch For Grasshoppers in Crops

August 9, 2016
Growers are reporting grasshoppers in field borders moving into crop fields in parts of Nebraska. Here are the insect treatments to help you determine treatment need.

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

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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