field corn grass herbicide

What has work best/lowest cost per acre. This would be in the SE, and non GMO/non R/R corn. I am going with permit and atrazine for now. and believe it or not but option corn herbicide is an option, but I am looking for less $$ per acre. What about the old stuff...Prowl, Accent Beacon, etc.? I am going to try OP corn a few years then probably go back to RR or LL corn.

TKS

Have you tried old cultivator?

Not yet. I have a MF 440 Row Crop Cultivator that I use after putting down urea, but that is a few weeks off. I picked up some new land this year and this is my first year with OP corn. Corn is up abut 3" two leaf stage. I have some grass coming along with it. Weeds no problem( atrazine 4l,24da if needed) But I am looking something less $$ than what is out now. Maybe something that worked 10 years ago. This is new ground, never been row cropped.

We have used Accent Gold (Accent plus Hornet I think) on small grass and it does a good job at the stage you are talking about. A slightly cheaper alternative is Steadfast. Each of these run in excess of $25/acre. We used to tank mix atrazine with one or the other as well for the broadleaves, and I think we heated it up a little with 28% N or ammonium sulfate. A local agronomist would be most helpful since they would know what is available. The last years we grew conventional corn we had to have our chemical dealer special order the Accent Gold for us. If you do go the Accent Gold route, the chemical is in little 4-acre packs that dissolve in the water. Rather than just tossing them in the sprayer, I liked to put them in a half-full 2-1/2 gallon jug of water and sloshed it around until it dissolved. Otherwise the little pack can just drop to the bottom of the spray tank, stick there, and not mix in well at all (in the case I am thinking of, a custom sprayer we know did this and then sprayed 35 acres of soybeans after rinsing his sprayer. It killed his beans but our corn field had a poor weed control job). With Accent, a light rain within a few days of spraying will help give residual control, otherwise within a few days it is a good idea to incorporate the chemical in with a row crop cultivator. If I recall, one wet year the grass was thick and we sprayed too late with Steadfast and had to cultivate anyway.
Good Luck!
Lon

If you are getting grasses in there, it is too late to spray. Corn at that stage is a "grass" also. Go ahead and cultivate now and see where you are in a month.

Dual is a pretty good pre emerge for grass. Lumax is a Dual/atrazine/Callisto mix that does very well. There are some post emerge grass herbicides, but they can get cashy. Think Lumax is labeled early post, but you better read up on it to make sure. Also the old Harness X-tra and a couple others. Been out of it for a while, so I'm not up on the new stuff.
AaronSEIA

If the grass is growing your options are more limited. We use steadfast with callisto post on non-gmo corn with great results. Granted that runs almost $35/acre and needs to be on by either 6 leaf collars or 12" whichever is more restrictive. Look at it this way you can save on the chem cost and you will likely give up more yield than it would have taken to pay for the chemicals. Don't think you will have much luck cultivating out grass we never did.

Seems that my problem is bermuda grass (wiregrass). I can't find anything to post spray. Guess I will have to go back to RR corn on this field.