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

Wheat stem sawfly adult

Management Decisions Impact Wheat Stem Sawfly Populations

August 30, 2019
University research in the Nebraska Panhandle suggests that changing two management strategies may help significantly reduce wheat stem sawfly pressure in winter wheat. Over the years, the sawfly has become a major pest in wheat with few known control measures.

Read more

A screen capture from a time-lapse video of dry edible beans without irigation

Some Fields Doing Better Than Expected Without Irrigation, Some Not

August 23, 2019
Time-lapse videos and photos capture the status of crops affected by the loss of irrigation water to growers in the North Platte River Valley in eastern Wyoming and western Nebraska.

Read more

Figure 1. 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. 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)

Why Control of Volunteer Wheat is Critical to Protecting 2020 Yields

July 12, 2019
Volunteer wheat can create a "green bridge," providing a route for mites to move to and infest emerging wheat. These mites can then transmit wheat streak mosaic virus, High Plains virus, and Triticum mosaic virus, or all of them to create a complex of infections.

Read more

Crop progress and conditions for corn from the USDA National Agricultural Statistics Service indicating predicted timing for corn growth stages (2019).

Using Degree-Day Models to Predict Western Bean Cutworm Flights

June 21, 2019
With late planting, slow emergence, and cooler summer temperatures affecting corn development, will corn be spared from western bean cutworm damage in 2019. Unfortunately, models indicate WBC growth is also delayed. See a table of predicted dates for 2019 WBC flights in Nebraska and surrounding states.

Read more

Map of grassland-sawfly-parasitoid intensive survey.

Wheat Insect Update

January 9, 2019
A survey and landscape analysis is being conducted to better understand the ecology of both the wheat stem sawfly and its parasitoid, the most effective control method for the wheat stem sawfly in Nebraska.

Read more

Wheat stem sawfly

What’s New in Entomology: Nebraska Panhandle

January 9, 2019
Key crop insect pests to watch for in the Panhandle, including western corn rootworm, western bean cutworm, corn earworm, wheat stem sawfly, alfalfa weevil, grasshoppers, and a potential new pest, the brown marmorated stink bug. This article is from the 2019 Crop Production Clinic Proceedings.

Read more

Corn earworm larva

What’s New in Entomology: West Central Nebraska

January 9, 2019
A survey of ongoing, new, and potential insect pest threats to crop production in west central Nebraska. This article is from the 2019 Crop Production Clinic Proceedings.

Read more

Corn rootworm

Which Bt Traits Do You Need to Buy?

November 15, 2018
When it comes to buying corn seed, one way to save money is to ensure you are not investing in GMO insect protection traits you do not need for your particular farm or field. This guide can help you determine which traits you need where.

Read more

Pages