Skip to main content

Connie Tande

SDSU Extension Plant Diagnostician

605-688-5545

Berg Agricultural Hall 206
Box 2207D
Brookings, SD 57007

Connie supports the citizens of South Dakota in her role as the SDSU Extension Plant Diagnostician at the South Dakota State University campus in Brookings.

State & Regional Offices

SDSU Campus

Also by Connie Tande

Three wheat fields exhibiting wheat streak mosaic virus symptoms throughout.

South Dakota Wheat Streak Mosaic Virus Disease: 2026 Update

Wheat streak mosaic virus is on the move across South Dakota wheat fields. Due to the mild winter and overwintering in winter wheat, viral activity has had a jump start in 2026, and the occurrence and intensity of disease pressure is comparable to the 2025 season.

Aerial view of the SDSU Northeast Research Farm.
Jul 23

Northeast Research Farm Tour

Attend the annual Northeast Research Farm Tour on Thursday, July 23, 2026, from 4:00 p.m. CDT to dusk at the Northeast Research Farm (15710 455th Ave. South Shore, SD 57263). The farm is located on the junction of State Highway 20 and Codington County Highway 11, or 2.5 miles west of Exit 193 on I-29.

close up of a broccoli leaf with blackrot.

Black Rot of Brassica Crops

Overview and management of Black Rot for Brassica Crops.