Written collaboratively by Ruth Beck, Charles Bush, and Febina Mathew.
A guide depicting common stem diseases of Sunflower in South Dakota.
Written collaboratively by Ruth Beck, Charles Bush, and Febina Mathew.
A guide depicting common stem diseases of Sunflower in South Dakota.
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.
While scouting spring wheat in Brookings County this week, we noticed grasshopper nymph populations that were close to threshold.
Weed management in sunflowers poses unique challenges. Compared with many other crops, there is a limited number of herbicides selections, especially postemergence herbicides.