Justin McMechan
faculty
- Asst Professor Entomology University of Nebraska–Lincoln
Work
402-472-2312
On campus, dial 2-2312
Introduction to CropWatch Readers
Crop Infographics
Previous CW Contributions:
Soybean Gall Midge Larvae Found in Soybean Plants
June 29, 2019
In Nebraska, soybean gall midge larval injury to soybean has been found in most areas where adult soybean gall midge activity occurred over the past two weeks It is unlikely foliar insecticides will affect this insect.
Japanese Beetles Emerging; Scout Corn and Soybean Fields
July 26, 2023
Extension recommendations on estimating total defoliation from multiple insects to determine need for treatment in soybean.
Soybean Gall Midge: Management Window Changing for Nebraska Growers
June 26, 2019
Soybean gall midge larvae found feeding within soybean plants in east central Nebraska mean foliar applications will likely no longer be effective. In northeast Nebraska, however, they may still be effective for a short time.
Soybean Gall Midge Emergence Update in Nebraska
June 21, 2019
Soybean gall midge numbers continue to increase at a number of monitoring sites in the state.
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.
Soybean Gall Midge Emergence Continues in Nebraska
June 18, 2019
Emergence of soybean gall midge continues to increase in eastern Nebraska. Traps are being monitored daily and will be reported to allow growers to plan insecticide application for highest efficacy. (June 18, 2019)
Emergence of Soybean Gall Midge in Southern Cass County, NE
June 15, 2019
Soybean gall midge adults were collected June 14 and 15 in Cass County, but have not yet been found elsewhere in Nebraska traps. This article addresses when and where treatment is warranted. (June 15, 2019)
Scout Emerging Corn for Insects; Don’t Assume Protection
May 22, 2019
As corn begins to emerge, be alert to the potential for damage from early season insects such as cutworms, wireworms, white grubs, or other insects.