Jeff Bradshaw - Extension Entomologist

Jeff Bradshaw

faculty
Work Plant Sciences Hall (PLSH) 279D
Lincoln NE 68583-0933
US
Work 402-472-3345 On campus, dial 2-3345

Faculty Bio
Get to Know Jeff: CW Introductory Article

Potato leafhopper

Watch for Aphids and Potato Leafhoppers in Nebraska Alfalfa

June 22, 2022
Nebraska growers should begin scouting for potato leafhoppers and spotted alfalfa, as these pests have been spotted in alfalfa fields in Gage County and Scottsbluff, respectively.

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Russian wheat aphids
Figure 1. Russian wheat aphids on a flag leaf of wheat.

Scout Your Wheat for Russian Wheat Aphids

May 24, 2022
Nebraska producers should begin scouting for Russian wheat aphids, as signs of this crop pest have begun appearing in Panhandle wheat plots and ongoing cool temperatures will support population growth. 

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Grasshopper

Continued Good News for Grasshopper Risk on Rangeland

February 10, 2022
Based on fall adult surveys conducted by USDA-APHIS, the risk of grasshopper infestation in Nebraska rangelands will be low in 2022, with slightly higher risk in southwestern Nebraska.

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Palmer amaranth in dry beans

Impact and Seed Production of Palmer Amaranth in Dry Beans

January 4, 2022
Results of a 2020-21 study investigating the impact of uncontrolled Palmer amaranth in dry beans. Using pinto beans, researchers were able to pinpoint yield loss and potential seed production of Palmer amaranth.

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Western bean cutworm adult

Degree-days for Prediction of Western Bean Cutworm Flight

June 21, 2022
Measuring the amount of heat between an upper and lower threshold to which an insect has been exposed, degree-days models can provide a high level of precision in predicting western bean cutworm peak flight.

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Wheat stem sawfly
An adult wheat stem sawfly in wheat at the High Plains Ag Lab.

Wheat Stem Sawfly Emergence — Field Notes from Early June

June 7, 2021
Recent observations indicate very high populations of wheat stem sawfly in Nebraska wheat fields, with emergence not only from field edges but also deep within fallow fields. Documentation on infestations is encouraged for successful fall sawfly management.

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Alfalfa weevil larvae
Figure 1. Adult and small- to medium-sized larvae of the alfalfa weevil. (Photo by Julie Peterson)

Scouting Advised for Alfalfa Weevil

May 2, 2022
Alfalfa weevils have been reported damaging alfalfa in southeast Nebraska; scouting for this pest is crucial for alfalfa producers over the next few weeks.

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Army cutworms

Army Cutworm Scouting Urged in Western Nebraska Wheat and Alfalfa

March 31, 2021
With Army cutworms sightings reported from in Kansas, Extension experts encourage scouting efforts begin in Nebraska's fields — particularly in the west.

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