Weeds & Invasive Plants

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Ground sprayer parked outside a field at sunset.
Dec 03

2026 Commercial Applicator Training Online Course

SDSU Extension partners with DANR to offer pesticide certification program required for commercial applicators. The 2026 online course will be offered through Traininghouse and will be open from December 3, 2025, through February 28, 2026.

Sprayer applying pesticides to a field.
Feb 26

Commercial Applicator Training @ Ft. Pierre

SDSU Extension will host commercial applicator training in Ft. Pierre at the AmericInn by Wyndham (312 Island Dr, Ft. Pierre SD 57532) on February 26, 2026, from 8:30 a.m. - 4:00 p.m. CST.

Spaying fertilizer or chemical on plants
Feb 25

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.

Crop duster over a corn field
Feb 19

Commercial Aerial Applicator Training @ Tri-State Aerial Applicators Convention

SDSU Extension, NDSU Extension, and UMN Extension will host a joint aerial commercial applicator training on February 19, 2026, from 11:45 a.m. - 2:15 p.m. CST in conjunction with the Tri-State Aerial Applicators Convention, which will be held at The Delta Hotel in the Symphony Hall (1635 42nd St SW, Fargo, ND 58103).

Tractor applying postemergence herbicide to a soybean field early in the growing season.
Feb 05

Commercial Applicator Training @ Brookings

SDSU Extension will host commercial applicator training in Brookings at McCrory Gardens (631 22nd Ave, Brookings, SD 57006) on February 5, 2026, from 8:30 a.m. - 4:00 p.m. CST.

A green boom sprayer parked outside a crop field.
Feb 03

Commercial Applicator Training @ Aberdeen

SDSU Extension will host commercial applicator training in Aberdeen at the Dakota Event Center (720 Lamont St S, Aberdeen, SD 57401) on February 3, 2026, from 8:30 a.m. - 4:00 p.m. CST.

Tractor applying postemergence herbicide to a corn field early in the growing season.
Jan 29

Commercial Applicator Training @ Mitchell

SDSU Extension will host commercial applicator training in Mitchell at the Highland Conference Center (2000 Highland Way, Mitchell, SD 57301) on January 29, 2026, from 8:30 a.m. - 4:00 p.m. CST.

Sprayer applying pesticides to a field.
Jan 27

Commercial Applicator Training @ Rapid City

SDSU Extension will host commercial applicator training in Rapid City at the DoubleTree by Hilton (505 N 5th St, Rapid City, SD 57701) on January 27, 2026, from 9:00 a.m. - 4:00 p.m. MT.

Producer loading pesticide into a sprayer tank.
Jan 15

Commercial Applicator Training @ Sioux Falls Ag Expo

SDSU Extension will host commercial applicator training during the Sioux Falls Ag Expo at the Sioux Falls Convention Center (1201 N W Ave, Sioux Falls SD 57104) on January 15, 2026, from 8:00 a.m. - 1:00 p.m. CST.

Beef cattle out at pasture at Cottonwood Field Station
Dec 17

Private Applicator Training for Rangelands

SDSU Extension will host a free private applicator training for rangelands on December 17, 2025, from 1:30 - 4:30 p.m. CT (12:30 - 3:30 p.m. MT) focused on managing pests in rangelands. Participants have the option to attend online or at various locations across the state.