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 Wheat Weeds Content
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.
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 is a difficult-to-control, noxious weed in South Dakota. Spring and fall herbicide applications are critical for leafy spurge management.
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 is a difficult-to-control, noxious weed in South Dakota. Now is the time to consider fall applications for absinth wormwood 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.
Recent reports of Palmer amaranth infestations are concerning due to its aggressive growth, seed production, and resistance to multiple herbicide groups. Learn some management tactics to help control it before it becomes a serious problem.
At this time during the growing season, many herbicides cannot be applied to crops in the reproductive growth stage. However, weed management can still be implemented. Learn some expert tips for controlling late-season weeds.
Many pre and postemergence herbicides did not adequately control weeds during the 2023 growing season due to early dry and hot conditions. Despite the poor control, there are still options to implement at-harvest and post-harvest to help manage weeds.