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

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.

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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.

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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.

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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.

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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.

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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.

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A field of lodged wheat with an inset photo showing wheat stubs where the wheat stem sawfly overwinters.
Figure 1. Wheat lodging due to wheat stem sawfly. Figure 2 (inset). Wheat stubs remaining in field after sawfly feeding. The sawfly will overwinter in the stub and leave the plant in the spring.

Increased Wheat Stem Sawfly Populations In 2018 August 30, 2018

One of the newest challenges to wheat growers is the wheat stem sawfly, which can girdle stems, causing lodging and yield losses. University research may offer a clue to new control practices.

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Red-legged grasshopper nymph and adult
Red-legged grasshopper nymph and adult

Controlling Grasshoppers in Winter Wheat in the Fall August 29, 2018

Grasshopper populations may decline in late summer, but remain significant enough to cause serious damage to emerging wheat. Monitor densities in field borders before and after planting.

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