Jeff Bradshaw - Extension Entomologist

Jeff Bradshaw

faculty
Work
4502 Ave I Scottsbluff NE 69361-4939
US

Faculty Bio
Get to Know Jeff: CW Introductory Article

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 moth

Scouting and Treatment Recommendations for Western Bean Cutworm

July 15, 2021
The first western bean cutworm moths were captured in University of Nebraska-Lincoln black light traps on June 25-27 at Clay Center, June 26-27 at North Platte, and July 1 at Scottsbluff.

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Western bean cutworm adult

Degree-days for Prediction of Western Bean Cutworm Flight

July 1, 2021
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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Figure 1. The wheat-mite-virus complex has extreme potential to impact yield the following year if high risk volunteer wheat situations are not managed well
Figure 1. The wheat-mite-virus complex has extreme potential to impact yield the following year if high risk volunteer wheat situations are not managed well. (Photo by Gary Hein)

Do You Need to Control Volunteer Wheat to Protect the Next Season’s Winter Wheat Crop?

June 29, 2021
Volunteer wheat can provide the summer "green bridge" for the disease wheat streak mosaic and other virus diseases. This almost always occurs as a result of wheat seed shattered from heads during hailstorms.

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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

April 28, 2021
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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Overwintering sawfly larva
The recent temperature extremes will not provide adequate control of pests such as this overwintering sawfly larva.

How Have the Cold February Temperatures Affected Insect Overwintering in Nebraska?

February 26, 2021
Extension specialists detail what effect February's bitter temperatures and snow cover may have on overwintering insects in Nebraska.

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