ronnycl":1oimfjez said:
Prowl would not be my first choice in pre emergent. First spray weeds burndown with roundup etc then work ground to desired level. Plant at 10 lbs acre on rows at least 30" wide and a sunflower planting plate. Spray with spartan as preemergent after planting and fertilize. Once the sunflowers are up about knee high spray again this time use dual and a post emergent. Clearfields use beyond as post emergent. Non clearfields use select as post emergent. Plant by mid april
Good article
https://www.uaex.edu/publications/pdf/FSA-2150.pdf
The uaex.education article is good, but needs to be updated
I will post early spring my planting details after I have read and evaluated any new chemicals and seed
This will be my 21st year of planting 20-40 acres of sunflowers yearly in 5 to 7 fields