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.
Factsheet covering Dectes stem borer in sunflowers.
Now that the August 31 deadline for the application of products containing malathion for red sunflower seed weevil management has passed, it is time to determine if the product was effective. South Dakota State University entomologists have received varying reports on this topic.
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.