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:
How Have the Cold February Temperatures Affected Insect Overwintering in Nebraska?
February 26, 2021
Extension specialists detail what effect February's bitter temperatures and snow cover may have on overwintering insects in Nebraska.
First Emergence of Soybean Gall Midge in Cass County, Nebraska
June 11, 2020
On June 10th, 2020 three soybean gall midge adults were collected south of Louisville, Nebraska. This was the only site in the network with soybean gall midge adult activity.
2020 Soybean Gall Midge Alert Network
May 20, 2020
In 2019, an alert network was established to monitor soybean gall midge adult emergence using cages across 27 sites in four states. Growers and consultants can sign up to receive emergence information alerts to aid in the timing of insecticide applications.
Planting Date Impact on Corn Growth and Ear Issues
May 14, 2020
Despite the above-average yields in recent years, there has been reports of ear formation issues in corn that ranged from sites in the Texas Panhandle, Colorado, Nebraska, Iowa, and Illinois. Does planting date play a role?
Scout Emerging Corn for Insects; Don’t Assume Protection
May 22, 2023
As corn begins to emerge, be alert to the potential for damage from early season insects such as cutworms, wireworms and white grubs.
Cutworm Pheromone Trapping Network Update
April 23, 2020
Pheromone traps have been established at several locations in eastern Nebraska to monitor for several spring migrants to Nebraska; black cutworm, variegated cutworm and true armyworm moths. Find the latest report here.
Soybean Gall Midge Roundtable Meeting Set for Mar. 2
February 7, 2020
Come and join us from 9:30 a.m. - 3 p.m. on Monday, March 2nd, at the Eastern Nebraska Research and Extension Center (1071 County Road G, Ithaca, NE) for the latest information on this newly emerging soybean pest.
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.