Justin McMechan
faculty
- Assoc Professor Entomology University of Nebraska–Lincoln
Work
402-472-2312
On campus, dial 2-2312
QR Code for Justin McMechan
Introduction to CropWatch Readers
Crop Infographics
Previous CW Contributions:
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.
Frozen, Emerged Corn?
May 10, 2019
Temperatures in some fields early Friday morning may have caused some to remember 2017 conditions and wonder about possible frost damage to corn seedlings. Here's how this year is different.
Alerts Available for Tracking Soybean Gall Midge
May 9, 2019
A new alert system will notify growers when emerging soybean gall midges are captured in field traps in counties where there was damage in 2018.
Avoiding Injury from Seed Corn Maggot
May 20, 2020
We have received several reports of injury from seed corn maggot that has reduced stands of Nebraska soybeans. Learn why they may have been more problematic this year.