Jeff Bradshaw - Director of the Doctor of Plant Health Professional Program

Jeff Bradshaw

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

Alfalfa Weevil Surging in Alfalfa Fields

May 8, 2024
Alfalfa weevil larvae have emerged in southeast, south-central and central 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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sawfly larva within its pupal chamber
Wheat stem sawfly within its pupal chamber.

Wheat Stem Sawfly in 2020

September 1, 2020
This article provides a brief background on how the wheat stem sawfly arrived here, ideas on how we might manage it in Nebraska and thoughts on why we saw reduced damage in some regions while others had the most damage they have ever seen.

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wheat stem sawfly adult

Wheat Stem Sawfly Infestations Continue to Impact Harvest in the Nebraska Panhandle

July 23, 2020
WSS damage in winter wheat was first noted in Nebraska in the early to mid-1990s in Banner County near the Wyoming border. It has continued to increase ever since and now is a very significant issue.

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