Written collaboratively by Adam J. Varenhorst, Aaron Hargens, Shelby Pritchard, Patrick Wagner, Bradley McManus and Philip Rozeboom
Fact sheet on identifying, scouting and management options for red sunflower seed weevils in South Dakota.
This publication was developed through funding from SDSU Extension and the National Institute of Food and Agriculture, Crop Protection and Pest Management Applied Research and Development Program support through grant 2024-03471.
Aster yellows is a phytoplasmal disease carried and introduced by aster leafhopper. It is known to infect over 80 different plant families, as the aster leafhopper has extremely broad feeding habits.
Red sunflower seed weevil adult activity is well underway on sunflowers in South Dakota. Even though the red sunflower seed weevil numbers are down, we are still observing populations in South Dakota that are above threshold.
Submission form to screen weeds for herbicide resistance in South Dakota.