ChattBuck
Senior Member
Rageweed I like it lol, dual will work better but it's mainly going to just give you more control for about a week longer. None of the preemergents for sunflowers work that well on ragweed, there's one product that may get labeled in the future that might help but I'm not sure the crop safety and it takes an 1in of rain to activate. Zidua works better than dual out west but there isn't much data on it in the southeast and it ain't cheap.
As others have said the deer will eat the ragweed. But I've not seen that. My biggest issue is needing clean rows for the dove to land in. Nothing I've found is working on the ragweed and it's choking out my rows.
What we need is a roundup ready sunflower!