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David Wangila - Extension Educator

Close-up of a corn leafhopper on the left and a corn leaf with reddish streaking symptoms of corn stunt disease on the right.

Published: September 4, 2025 | Updated: March 18, 2026

Presence of Corn Leafhoppers Confirmed in Nebraska

By Tamra Jackson-Ziems - Extension Plant Pathologist, Kyle Broderick - Extension Educator and Coordinator of the UNL Plant and Pest Diagnostic Clinic, Julie Peterson - Extension Entomologist, Kyle Koch - Assistant Extension Educator, Talon Mues - Extension Educator, Ron Seymour - Extension Educator, Marina de Val-Hilden - Extension Educator, David Wangila - Extension Educator, Robert Wright - Extension Entomologist, Abigail Lyons - Research Technician, Pin-Chu Lai - Extension Entomologist

Close-up of a hand holding a green leaf with white streaks; dry, yellowing grass in the background.

Published: May 16, 2014 | Updated: May 1, 2026

Assessing Freeze Injury to Wheat

Authored By: Robert Klein - Emeritus Extension Professor, Cody Creech - Dryland Cropping Systems Specialist, Nicolás Cafaro La Menza – Cropping Systems Specialist, Department of Agronomy and Horticulture, Al Dutcher - Former Associate Nebraska State Climatologist, Amanda Easterly - Research Associate Professor, Karen DeBoer - Former Extension Educator, Stephen Wegulo - Extension Plant Pathologist

Updated By: Cody Creech - Dryland Cropping Systems Specialist, Amanda Easterly - Research Associate Professor, Stephen Wegulo - Extension Plant Pathologist, Jenny Brhel - Extension Educator, Ruby Collins - Extension Educator, Samantha Daniel - Extension Educator, Eric Hunt - Agricultural Meteorology and Climate Resilience Extension Educator, Gary Stone - Extension Educator, John Thomas - Crops Extension Educator, David Wangila - Extension Educator, Todd Whitney - Extension Educator, Vinicius Zuppa - Assistant Extension Educator

fall armyworm with distinctive white and dark green stripes and dots across body

Published: September 24, 2021 | Updated: September 5, 2025

Fall Armyworms in Pastures, Alfalfa, Small Grains, Cover Crops and Lawns

Authored By: Jenny Brhel - Extension Educator, Robert Wright - Extension Entomologist, Melissa Bartels - Former Extension Educator, Nathan Mueller - USDA NRCS, State Soil Health Specialist, Ben Beckman - Extension Educator, Brad Schick - Former Extension Educator, Daren Redfearn - Associate Professor Agronomy

Updated By: Matheus Ribeiro - Assistant Extension Educator, David Wangila - Extension Educator, Jenny Brhel - Extension Educator