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Content by Eric Jones

Yellow toadflax plants flowering in a grassy area beside a field.

Yellow Toadflax Has Begun Producing Seeds: Scout before treating infested areas

Yellow toadflax is a perennial weed that infests pasture and rangeland across South Dakota. This year, with an abundance of heat and moisture, plants flowered in early August and now have started to produce seeds.

Multi-rotor drone used for spray, spread and seeding

Required Licensing For Applying Pesticide Using Spray Drones

Fact sheet for South Dakota stakeholders wanting to get certified to apply pesticides with a spray drone.

A green Palmer amaranth weed surrounded by various other green plants.

Palmer Amaranth Confirmed in Turner County: Is this weed in your fields?

Palmer amaranth has recently been confirmed in Turner County. Currently, the estimation of Palmer amaranth infestations has been confirmed in 18 counties across South Dakota

A green field bindweed with a white flower at top.

In a Bind With Field Bindweed?

It’s August and field bindweed, one of our most-persistent perennial weeds, is flowering. Although field bindweed is not statewide noxious, it’s locally noxious in Bennett, Bon Homme, Clarke, Lake, Stanley, and Yankton counties.

Wheat plants infected with wheat streak mosaic virus.

Volunteer Wheat and Kochia Management With Herbicides Will Likely Require Two Passes

Wheat curl mites, which carry wheat streak mosaic virus, use volunteer wheat and grass weeds as secondary hosts to infest recently planted winter wheat crops. Therefore, effective management of these plants before winter wheat planting is critical.

Combine harvesting wheat.

Weed Management After Wheat Harvest

Most of the winter wheat has been harvested in South Dakota and spring wheat harvest is underway. While the growing season is over for the wheat, post-harvest weed management is important to minimize the amount of weeds that are present in the spring

Weeds growing abundantly between rows of soybean in a research plot.

Suspect Herbicide Resistance in Your Fields? SDSU Can Help!

Submission form to screen weeds for herbicide resistance in South Dakota.

Green Canada thistle with whitened leaves at the top. Various green plants throughout.

White Thistle Disease: Biological management at work

White thistle disease can be seen among many Canada thistle plants throughout South Dakota this growing season. Plants infected with the disease exhibit significant reductions in both growth and seed head compared with non-infected plants.

A picture of a green, smooth crabgrass plant with a white background.

Late-Season Crabgrass Control

At the start of August, crabgrass is often prevalent in lawns. Ideally, this weed should be controlled earlier in the season, but if early management was missed, a post-emergence herbicide can help control it before it produces more seed.

Two pictures of green soybeans with a blue sky in the background.

Strong, Effective Herbicide Programs Can Be Complimented With Narrow Row Spacing

While strong herbicide programs will result in effective weed management, a cultural tactic, such as row spacing can result in a complementary increase in effectiveness.