605-394-1722
SDSU West River Research and Extension
711 N Creek Dr
Rapid City, SD 57703
Patrick serves the citizens of South Dakota as an SDSU Extension Entomology Field Specialist based in Rapid City.
Patrick Wagner
SDSU Extension Entomology Field Specialist
Also by Patrick Wagner
Vertento® Insecticide Approved for Red Sunflower Seed Weevil Management
Recently the Environmental Protection Agency approved a Section 18 Emergency Exemption label for Vertento® Insecticide for use on sunflowers for red sunflower seed weevil management in South Dakota. This exemption is effective from July 15 to August 31, 2026.
Fly Management for Cattle
There are several species of flies that can reduce the production value of livestock, particularly during hot, dry weather. To manage these pests, it’s important to be able to accurately identify them and understand their life cycles.
Large Grasshopper Nymph Populations Detected in Southeast South Dakota
This week we received several reports of large grasshopper populations originating from southeast South Dakota. The populations were well above threshold and actively defoliating crops.