Justin McMechan
faculty
Work
1071 County Rd G
Ithaca
NE
68033-2234
US
Work
402-624-8041
On campus, dial 7-8041
Introduction to CropWatch Readers
Crop Infographics
Previous CW Contributions:
Management of defoliating insects in Nebraska soybeans
January 16, 2020
Many defoliating insects may be found in Nebraska soybeans. Estimating defoliation levels in fields is the best way to decide whether it will pay to treat for these insects.
Mid-Season Update on Soybean Gall Midge
August 7, 2019
Soybean gall midge infestations have been confirmed in six new Nebraska counties since 2018.Treatment is not recommended at this time, but scouting and reporting infestations will continue to be important to plan for management next year.
Extension Crop and Pest Reports (July 29 - Aug. 2)
August 1, 2019
Crop reports from Extension Educators and specialists from across the state, including videos and Tweets.
Grasshoppers Return ― It’s Time to Scout Field Borders
July 18, 2019
Populations of immature grasshoppers are being reported in areas bordering crop fields in several parts of Nebraska. If these grasshopper species are one of the four major species that are likely to infest cropland, control may be warranted if high numbers are present.
Soybean Gall Midge Adults Emerge from this Year’s Soybean Fields
July 17, 2019
A significant number of soybean gall midge adults have been collected from this year’s soybean fields in east-central and northeast Nebraska. Dead and dying plants have been observed near infested sites in both northeast and east central Nebraska.
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.
Painted Lady Butterflies Are Abundant In Many Areas—What Now?
July 10, 2019
Treatment is not recommended for the painted lady butterfly currently being seen in high numbers and could endanger beneficial insects. Treatment thresholds offer guidance for treating feeding caterpillars.
Western Corn Rootworm Beetles Emerging, Time to Scout
July 9, 2019
Western corn rootworm beetles began emerging in southeast and south central Nebraska and will feed on corn leaves until silks, their favored food, emerge. Beetles will emerge somewhat later in northeast and western Nebraska.