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Dark green and tan curled caterpillars with an orange stripe along their sides.

Keep an Eye on Your Wheat: True Armyworm caterpillars may be present

Every year, true armyworm caterpillars pose a threat to South Dakota wheat fields, and they most frequently show up during the end of June and early July. However, strong southerly winds during the spring can cause populations to show up earlier.

4-H Volunteers

Volunteers work with 4-H professionals across the state on projects, programs, clubs, judging and leadership opportunities for young people.

Aerial view of test plots at the Volga Research Farm.

Jul 29

Integrated Pest Management (IPM) Field School

SDSU Extension will host an IPM Field School at the SDSU Volga Research Farm (21200-, 21298 464th Ave., Volga, SD 57071) on Wednesday, July 29, from 9:00 a.m. - 4:00 p.m.

A large moth with black and orange striped wings resting on a black light box.

Jul 23

Moth Walk @ McCrory Gardens

SDSU Extension and McCrory Gardens will host a moth walk to kick off National Moth Week on Thursday, July 23, 2026, from 9:00 to 11:00 p.m. CDT at McCrory Gardens (631 22nd Ave, Brookings, SD 57007).

Green soybeans plants with a light grey background. All soybean plants have purple flowers which indicates the plants have reached reproductive stage 1.

Soybean Plants Are Entering the Reproductive Stage (R1): Last chance to spray select herbicides

The summer solstice roughly marks the date when soybean plants switch from vegetative growth to reproductive growth. An important aspect of the reproductive growth stage is that many herbicides can no longer be applied after plants reach any bloom stage.

mostly black cattle stand around a dugout with water. the grass is green and the sky is blue

SDSU Extension provides free livestock water testing

May 28, 2026

South Dakota State University Extension is encouraging producers to take advantage of its free, on-site livestock water testing services across the state.