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Amanda Bachmann

SDSU Extension Urban Entomology Field Specialist

Also by Amanda Bachmann

An expert stands in front of a corn field and speaks to attendees of a field day
Feb 18

Athletes in Overalls Webinar

SDSU Extension will host an Athletes in Overalls webinar on Wednesday, February 18, from 6:30-8:30 p.m. CST/5:30-7:30 p.m. MT.

Swarm of mosquitoes.

West Nile Virus Update: October 16, 2025

As of October 16, 2025, the South Dakota Department of Health reported 86 human cases of West Nile virus from Aurora, Beadle, Bon Homme, Brookings, Brown, Charles Mix, Clay, Codington, Corson, Douglas, Grant, Gregory, Haakon, Hamlin, Hand, Hughes, Hutchison, Hyde, Lawrence, Lincoln, Marshall, Meade, Miner, Minnehaha, Pennington, Roberts, Sanborn, Spink, Stanley, Todd, Union, Walworth, and Yankton counties.

Northern Corn Rootworms on sunflowers, zinnias, and dahlia flowers.

Corn Rootworm Presence in Cut Flowers

Multiple cut flower farms in Eastern South Dakota have reported corn rootworms on a variety of crops, including sunflowers, zinnias, and dahlias. Careful attention to species present, their timing, and the damage they cause can help inform integrated pest management strategies.