Alan Dinan Posted July 12 Posted July 12 Dad always planted river bottom beans in 30” rows and we cultivated them at least once but usually twice. If we had weeds just before the canopy closed , dad would spray Cobra with liquid fertilizer mix and the beans wouldn’t burn. We had a 133 8-30 and we cultivated with the 1026 or 1086. 1 Quote
Lars (midessa) Posted July 12 Posted July 12 On 7/11/2026 at 7:49 AM, acem said: I know a professor who is now working on robot weeders at some big Ag university. Lazers, steam, targeted chemical, whatever works. I think swarms of small robots killing weeds is a great idea. Spraying Dessicants to clean up a field and hasten dry down is a thing. Sodium Chlorate and Paraquat are commonly used. I don't think roundup would work here due to resistance. I have rarely done it. Normal practice for Cotton. Desiccants on edible foods is a practice I was made aware within just last couple years or so. IMHO, this is an abhorrent practice, that should be outlawed post haste. We now know, many plants do indeed ‘take up’ thru their cell structure residue from chemical applications. Then to go and apply more shortly before harvest, is nauseating. 1 1 Quote
Dirt_Floor_Poor Posted July 12 Posted July 12 34 minutes ago, Lars (midessa) said: Desiccants on edible foods is a practice I was made aware within just last couple years or so. IMHO, this is an abhorrent practice, that should be outlawed post haste. We now know, many plants do indeed ‘take up’ thru their cell structure residue from chemical applications. Then to go and apply more shortly before harvest, is nauseating. Just buy organic. Problem solved. Quote
MoeSzyslak Posted July 12 Posted July 12 19 hours ago, FarmerFixEmUp said: Just watched the latest AgPhd show and they talk about late season crop treatment options. They said cobra has a 45 day pre harvest interval, and suggest 1 1/4 lbs of boron to reduce leaf burm. Phoenix is the same as cobra with a safener. Might just try it on that dirtier field, it's only 16 acres. https://heftyseed.com/aayjunejuly2022-what-to-do-when-its-too-late-for-dicamba What weeds are you trying to kill? If Flexstar did not work, Cobra will probably not work because they are in the same group. My experience if Cobra fails, Flexstar might still work but not the other way around. There are a few other options for non-gmo beans depending on the growth stage. Quote
FarmerFixEmUp Posted July 13 Author Posted July 13 Tall waterhemp, Flexstar is not to be applied after June 20th because of 10 month rotation intervval to corn. Only options left would be cobra, phoenix, ultra blazer or cadet, none are really strong on big weeds this late. Quote
acem Posted July 13 Posted July 13 You can spot spray 24D in conventional soybeans with a hand sprayer. If you're careful you won't kill many soybeans. Don't do that with dicamba! Of course it's off label. We used to spray 24DB on soybeans decades ago. Might work for you??? Quote
FarmerFixEmUp Posted July 13 Author Posted July 13 6 hours ago, acem said: You can spot spray 24D in conventional soybeans with a hand sprayer. If you're careful you won't kill many soybeans. Don't do that with dicamba! Of course it's off label. We used to spray 24DB on soybeans decades ago. Might work for you??? I have been thinking about a second pass of zidua or warrant for residual control keeping the weeds down that haven't emerged and adding cobra or one of the others, but if it doesn't rain to activate it will be a repeat of the post plant from before. No rain in the forecast here this week. I have a 15 gallon ATV sprayer on the bean rider attached to the middle seat I keep Liberty in, the other tank has Cobra. Lastt year I sprayed sunflower escapes with the Liberty and waterhemp if it was pretty big. 1 Quote
Dirt_Floor_Poor Posted July 13 Posted July 13 8 hours ago, acem said: We used to spray 24DB on soybeans decades ago. Might work for you??? I thought about trying some conventional beans this year. I was going to try the 2,4-DB on it if I raised them. I’ve heard mixed reviews on it. Quote
acem Posted July 13 Posted July 13 1 hour ago, Dirt_Floor_Poor said: I thought about trying some conventional beans this year. I was going to try the 2,4-DB on it if I raised them. I’ve heard mixed reviews on it. It's been many years since I used 24DB. I do remember it burning the beans. 1 Quote
Dirt_Floor_Poor Posted July 13 Posted July 13 1 hour ago, acem said: It's been many years since I used 24DB. I do remember it burning the beans. Did it kill weeds, or just burn the beans? Most of my experience with conventional beans was, scalding the beans and not hurting the weeds at all. Quote
acem Posted July 13 Posted July 13 4 hours ago, Dirt_Floor_Poor said: Did it kill weeds, or just burn the beans? Most of my experience with conventional beans was, scalding the beans and not hurting the weeds at all. It's been a really long time ago and I'm not sure... Seems like I was trying to kill cockelburs... seems like it worked but I'm not sure... Back in the 90's? Didn't use it much. Roundup came out and changed everything. Oh yeah. Seems like it worked better with a post directed rig and sprayed it just near the row under the canopy. Concentrated the spray rate into a smaller area and gave less contact on the beans. Probably culti spray. Cultivate and spray under the canopy at the same time. I used to do that some. 1 Quote
MoeSzyslak Posted July 13 Posted July 13 24DB works great on smaller weeds and there is a growth stage limit on the beans that should be followed. The beans will wilt after applied and look like they are going to die but come back. The label does warn that it could kill some soybean varieties if i remember correctly. Basagran works pretty good on weeds it is labeled for if you use the correct adjuvents and spray when it is really hot and sunny out, like mid day 90+ degrees. Basagran if i remember can be sprayed at any time on soybeans. Quote
acem Posted July 14 Posted July 14 I can say that a tank mix of 24D and Enlist will kill big palmer. However it will also kill beans without the proper traits... Quote
FarmerFixEmUp Posted July 14 Author Posted July 14 Can;t say I;ve ever heard of 24D B, just amne and exter. Ended up spraying all the beans yesterday and this morning, 12.5 oz cobra and zidua added on the last field, added a quart of a foliar fertilizer blend that's supposed to reduce leaf burn, but they're cahnging color already. 5 mph and 25 gallons an acre, should be well covered. Quote
FarmerFixEmUp Posted July 17 Author Posted July 17 On 7/13/2026 at 12:10 AM, acem said: You can spot spray 24D in conventional soybeans with a hand sprayer. If you're careful you won't kill many soybeans. Don't do that with dicamba! Of course it's off label. We used to spray 24DB on soybeans decades ago. Might work for you??? On 7/13/2026 at 6:47 PM, MoeSzyslak said: 24DB works great on smaller weeds and there is a growth stage limit on the beans that should be followed. The beans will wilt after applied and look like they are going to die but come back. The label does warn that it could kill some soybean varieties if i remember correctly. Basagran works pretty good on weeds it is labeled for if you use the correct adjuvents and spray when it is really hot and sunny out, like mid day 90+ degrees. Basagran if i remember can be sprayed at any time on soybeans. I called 3 agronomists about 24D B, 2 never heard of it. They said if it would work on waterhemp they'd know about it. Number 3 said it was Butyrac? Said it's very weak 24D that needs to be applied on very small weeds, like 3 inches or less. Apperently used in southern states. AI Overview Butyrac (commonly sold as Butyrac 200) is a selective, post-emergent broadleaf herbicide featuring the active ingredient 2,4-DB. It is specifically designed to eliminate problem weeds (like cocklebur and ragweed) in forage legumes, alfalfa, and soybeans without harming the primary crop. www.greenbook.net +2 How it Works Butyrac is a phenoxy herbicide that utilizes a unique mode of action. The active ingredient 2,4-DB is absorbed by the foliage of actively growing weeds but remains harmless to certain legumes. These specific crops possess the natural enzymes needed to safely break the compound down into non-toxic elements, whereas susceptible broadleaf weeds cannot. Keystone Pest Solutions +3 Key Features and Applications Crop Safety: Highly effective for broadleaf weed control in seedling and established alfalfa, clovers, birdsfoot trefoil, peanuts, and soybeans. Keystone Pest Solutions Not Safe for All Plants: Butyrac is not safe to use on brassicas (e.g., turnips, radishes, sugar beets) or chicory. It must also be kept away from non-target crops like grapes, tomatoes, okra, and cotton, as drift can cause severe injury. Amazon.com +1 Application Rates: Typical application is around 1 to 3 quarts/A depending on weed height. For spot spraying, a mixture of about 2.5 to 3 ounces per gallon of water is used. Amazon.com +2 Target Weeds: Best used when weeds are small (under 3 inches tall). It effectively targets cocklebur, lambsquarters, pigweed, ragweed, and morningglories. TELUS +3 User Perspectives and Tips Clover and Alfalfa Plots: It is highly regarded by land managers for clearing weeds in food plots, as noted on DeerBuilder. Weather and Stress: On Facebook, users share mixed opinions regarding clover application. Some growers report that spraying in temperatures exceeding 85°F causes temporary wilting or significant stress to clover, and advise applying in cooler conditions. deerbuilder.com +2 To compare prices or purchase, you can check farm supply retailers like Whitetail Company or Keystone Pest Solutions. Always review the specific product label, as guidelines vary based on the target crop and climate. Whitetail Company +2 Quote
Dirt_Floor_Poor Posted July 17 Posted July 17 I had found some Roundup Ready 1 beans that can be kept for seed. I was going to try the 2,4-DB on those. I didn’t get around to it. I feel like I really need to for next year to try and cut some seed cost. The weed control is a nightmare without the Enlist trait, but costs are out of control. 2 Quote
acem Posted July 17 Posted July 17 Seems like i sprayed it for cockleburs. Butrac seems like the right name. Seems like a neighbor may have sprayed it on alfalfa to kill cockleburs too. I didn't use it much. Rotary hoed and plowed several times back then. Didn't use many chemicals because they were expensive. They cost even more now but I sure spray alot more... We need a different method to kill weed other than tillage and chemicals... 1 Quote
acem Posted July 17 Posted July 17 1 minute ago, Dirt_Floor_Poor said: I had found some Roundup Ready 1 beans that can be kept for seed. I was going to try the 2,4-DB on those. I didn’t get around to it. I feel like I really need to for next year to try and cut some seed cost. The weed control is a nightmare without the Enlist trait, but costs are out of control. The university of Arkansas released some group 5 roundup ready soybeans that are legal to save. Have you found any group 4? Liberty is off pattent too. 1 Quote
Dirt_Floor_Poor Posted July 17 Posted July 17 Just now, acem said: The university of Arkansas released some group 5 roundup ready soybeans that are legal to save. Have you found any group 4? Liberty is off pattent too. Group 5 is all I could find. That is longer than I would prefer, but I was going to try them. I was going to get them from the University of Missouri. 1 Quote
acem Posted July 17 Posted July 17 Ive grown some of the group 5 UA soybeans. They work pretty good if you don't have pigweeds. Might work if you had good luck with overlapping residual herbicides. 1 Quote
Cool1566 Posted July 17 Posted July 17 I used Butyrac back in the ‘80s then when roundup ready came along I still put a couple of ounces with the roundup to help with giant ragweeds (river bottoms flood plain) and also to try and make the beans node closer. Unfortunately it’s off label for post spraying in the states I’m in. 2 Quote
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