Content by Nick Volesky
Black Rot of Brassica Crops
Black rot is an uncommon, but devastating bacterial disease in South Dakota that can develop during extended periods of hot and wet weather, leading to rapid and widespread crop loss.
Nostoc in Lawns
Nostoc is a genus of cyanobacteria that form colonies in gelatinous masses. In South Dakota, it commonly appears in home lawns, notably in patches where grass is not growing, especially after periods of rain.
Cold Frames
Cold frames are structures that provide a method for extending the growing season, allowing gardeners to begin production earlier in the spring or continue later into the fall.
Commercial Ornamental/Turf Applicator Training @ Sioux Falls
SDSU Extension will host ornamental and turf commercial applicator training in Sioux Falls at the Best Western Plus Ramkota (3200 W Maple St, Sioux Falls, SD 57107) on February 12, 2026. CST.
Commercial Ornamental/Turf Applicator Training @ Rapid City
SDSU Extension will host ornamental and turf commercial applicator training in Rapid City at the Ramkota (2111 N LaCrosse St, Rapid City, SD 57701) on February 25, 2026, from 9:30 a.m. – 4:30 p.m. MT.
Private Applicator Training for Specialty Crops
SDSU Extension will host a free private applicator training for specialty crops on March 18, 2026, from 1:30 - 4:30 p.m. CT (12:30 - 3:30 p.m. MT). Participants have the option to attend online or at various locations across the state.
Pumpkin Carving Preservation
Pumpkin carvers can use several techniques to slow or prevent the spread of pathogens and help their jack-o’-lanterns last longer. Learn some expert tips for getting the most out of your pumpkin carvings this fall.
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.
Perennial Weed Control in Lawns and Turf With Fall Herbicide Applications
Early fall is great time to control perennial weeds in lawns, including Wild violet, Creeping Bellflower, Ground Ivy, and Canada Thistle. Learn some expert tips selecting the right herbicides to manage these difficult-to-control weeds this fall.
Season Extension for Fall Specialty Crops
Extending crop production into the fall allows growers to take advantage of cooler temperatures and enjoy fresh, cool-season vegetables later in the year.