Corn Weeds
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South Dakota Pest Management Guides
The South Dakota Pest Management guides are now available for free. The guides offer recommendations for controlling weeds, insects, and diseases in a variety of South Dakota crops.
All Corn Weeds Content

Now Is the Time To Make Your Weed Management Plan for the 2024 Growing Season
As harvest season comes to an end, now is the time to start formulating your weed management plan for next year. Learn some expert tips for getting your operation off to a good start next growing season.

Now Is the Time To Plan For Noxious Weed Control in 2024
Since most of South Dakota has experienced several frosts, fall herbicide applications are likely near completion. However, now is the time to plan for noxious weed management for both spring and fall of 2024.

Crops
During the growing season, SDSU Extension provides weekly production recommendations.

Evidence That Combines Can Transport Weed Seeds
A combine deliberately harvests crop grain, but it can also unintentionally transport weed seeds. Learn some tips for cleaning equipment and containing residues during harvest to prevent weeds from spreading this fall.

Order of Fields Harvested Can Improve Weed Management
Weeds at harvest time are hard to avoid, and their severity in fields can range from “clean” to a “weedy mess.” Harvesting weedier fields last can help limit the movement of weed seeds and reduce future weed pressure.

Row Crop and Noxious Weed Surveys
Controlling noxious weeds and weeds in row crops is a challenge every year. SDSU Extension has created two online surveys to capture the current climate of weed control in South Dakota.

Leafy Spurge Control in the Fall
Leafy spurge is a difficult-to-control, noxious weed in South Dakota. Spring and fall herbicide applications are critical for leafy spurge management.

Canada Thistle Control in the Fall
Canada thistle begins to transport assimilates and nutrients down its roots in the fall to survive the winter months. Now is the time to consider a fall herbicide application to keep it under control.

Absinth Wormwood Control in the Fall
Absinth wormwood is a difficult-to-control, noxious weed in South Dakota. Now is the time to consider fall applications for absinth wormwood control.

Yellow Toadflax Control
Yellow toadflax is a short-lived perennial plant that infests pasture and rangeland. If not controlled, it can displace native plant species and increase the potential for soil erosion. Learn some tactics for managing it.