Herbicides can persist and affect future crops. Many factors effect herbicide carry over; amount of moisture, soil PH, previous crop planted, soil texture, soil organic matter level, no-till, tillage, etc. When planning on rotating to another crop always check the product label first to look for rotation restrictions. This is a quick reference guide to common herbicides and their rotation restrictions for selected crops. Refer to label to see if field bioassays should be performed before planting rotation crops, especially for rotation intervals longer than 18 months.
Herbicide Rotation Restrictions
SDSU Extension will be hosting ‘open house’ tours for the Crop Performance Testing Spring Wheat Trials at various locations throughout the state.
South Dakota researchers have taken a closer look at the function of dung beetles in Eastern South Dakota over the last few years. This article summarizes findings related to management of livestock grazing and chemical pesticides in relation to dung beetle and insect community health.