Insect Management

Cover crop field with mixed-species plantings — Later season field of cover crops in southeastern Nebraska. (Photo by Paul Jasa)

Timing of Cover Crop Termination and Related Factors April 20, 2018

Should the cold spring delay cover crop termination? Growers walk a fine line between growing cover crops long enough to get the biomass they want without reducing yield in the following grain crop. This discussion from an agronomist, entomologist and weed scientist looks at various factors to consider.

Western bean cutworm larvae on an ear of corn

Efficacy of Foliar Insecticide Treatments for Western Bean Cutworm in Corn April 11, 2018

Researchers report on three years of field research in west central Nebraska where 4-14 insecticide treatments were tested under irrigated conditions.

Insects in Cover Crop Systems April 6, 2018

If you missed the March 14 Nebraska Extension webinar on "Insects in Cover Crop Systems" with Justin McMechan, it's now available online.

Figure 1. Rye cover crop planted in small sections of field for erosion control. Center photo shows a section of ground where cover crop did not establish with normally developing plants. Damaged corn plants were primarily restricted to areas where cover crop was present.

Wheat Stem Maggot in Corn: Plan on Scouting Your Cover Crop Fields This Spring March 8, 2018

Wheat stem maggots were an issue for some eastern and southern Nebraska farmers planting corn directly into a growing cover crop, leading to questions about how to best manage this scenario in 2018. Learn why entomologists don't recommend adding an insecticide to the herbicide when terminating the cover crop.

A March 14 noon-hour webinar will explore the issue of wheat stem maggot damaging corn planted directly into rye or wheat cover crops. — A March 14 webinar will explore the problem of wheat stem maggot damaging corn planted directly into rye or wheat cover crops.

March 14 Webinar on Wheat Stem Maggot in Cover Crops March 2, 2018

A noon-hour webinar on March 14 will explore the issue of wheat stem maggot damage in corn planted directly into wheat or rye cover crops in 2017. Learn more about what happened and how to plan for 2018.

Whole Farm Planning Featured at Farming Evolution Feb. 13-14 February 2, 2018

Topics at the 2018 Farming Evolution program Feb. 13-14 in Colorado will include no-till, cover crops, grazing livestock on cropland, and the importance of biodiversity in pest management as part of a whole-farm/whole-ranch plan.

Cover 2018 Guide for Weed, Disease, and Insect Management in Nebraska

2018 Weed, Disease, and Insect Management Guide January 11, 2018

The 2018 Guide for Weed, Disease, and Insect Management in Nebraska is now available in print or as a download. The 332-page guide offers a single, comprehensive resource based on Nebraska research and conditions.

Check for Dectes Stem Borer Damage in Soybeans October 27, 2017

The dectes stem borer has been expanding its range in Nebraska and university entomologists are now receiving damage reports from eastern Nebraska.

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