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:
Insect Pest and Plant Diseases in Soybean: A Nebraska Soybean Board-funded Project
July 10, 2024
In a new study, UNL researchers are using unconventional treatments on soybean insects and diseases to investigate the relationships between certain pests and how their interactions impact crop yield.
Dectes Stem Borer in Soybean
July 10, 2024
A difficult insect to manage, soybean stem borer has expanded its reach in Nebraska. This extension article reviews considerations for scouting and control options, plus resources for producers to learn more on this crop pest.
Degree-days for Prediction of Western Bean Cutworm Flight in 2024
June 19, 2024
Measuring the amount of heat between an upper and lower threshold to which an insect has been exposed, degree-days models can provide a high level of precision in predicting western bean cutworm peak flight.
Soybean Gall Midge Adult Activity Detected in Nebraska
June 5, 2024
Soybean gall midge has been detected recently in several locations across eastern Nebraska. This article provides information to growers on how to determine if an application is necessary.
Pillbugs Causing Injury to Soybean Crops in Nebraska
May 23, 2024
Management of pillbugs is challenging. While some insecticides and planting strategies may help control pillbug populations, producers should carefully weigh the pros and cons of each approach.
Soybean Gall Midge Detected Across Nebraska Fields
September 12, 2023
With soybean gall midge emergence dates and locations advancing in the state, Nebraska Extension educators stress the importance of scouting and documenting observations, which can inform ongoing research on management options.
Hail Damage to Soybean in Reproductive Stages and Options
July 14, 2023
Nebraska Extension educators and specialists share replant recommendations for soybean producers recently affected by hailstorm damage.
Hail Damage to Late Vegetative to Silking Corn and Options
July 3, 2024
For producers with crop damage from recent hailstorms, the timing of storms, crop development stage, field damage, subsoil moisture and insurance are important factors to consider when deciding the next course of action.