Sunflower
All Sunflower Content
Sunflower Weed Management
Weed management can be particularly challenging in sunflowers.
South Dakota Pest Management Guides
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.
Sunflower Hybrid Variety Trial Results
In 2024, sunflower trials were planted at two locations in South Dakota.
Starter Fertilizer Calculator and Final Report
Decision aid to assist crop planners in selecting the maximum safe fertilizer rate that can be applied with the seed for various crops.
Sunflower Moths Causing Problems
While scouting late-planted sunflowers two weeks ago, there were increased observations of sunflower moth caterpillars in the heads that were later than the rest of the field. Sunflower moths are best managed as moths or early instar larvae.
Sunflower Moths Observed in South Dakota
Sunflower moths have been observed in South Dakota sunflower fields this week. Sunflower heads are most susceptible to damage caused by the sunflower moth caterpillars from the onset of flowering to when the ray petals begin drying.
Would you rather know or assume? A reminder to check varieties before spraying.
No matter how busy you are this growing season or in the future, you should never be too busy to stop and take a few minutes to double check herbicide types and crop varieties before spraying.
Sunflower Bud Moth Caterpillars Observed at the Base of Sunflower Stalks
When we think of observing sunflower bud moths, it probably isn’t during the fall before harvest. However, there are two generations of sunflower bud moth, and the caterpillars of the later generation move to the base of the plant to overwinter.
Prompt Harvest Can Reduce Lodging Caused by Dectes Stem Borer in Sunflower
If you notice an increased amount of lodging in your sunflower field, it is recommended to harvest the field as soon as possible to reduce losses from Dectes stem bore infestations.
Chlorpyrifos Products Can be Used in 2024 for Insect Pest Management
The U.S. Environmental Protection Agencys recently announced that currently registered insecticide products with the active ingredient chlorpyrifos will be legal to use on labeled crops during the 2024 growing season.