Best weed , grass and brush killer concentrate ( UPDATE post 51 )

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I just treated several areas in our yard so I could aerate and re-seed. The "new" Round-up doesn't have glyphosate in it...at lease the product for lawns/grass weed killer. Be sure to read the ingredient label before purchasing and be careful. Bayer shelled out a lot of money over lawsuits related to Glyphosate. I would check out Tractor Supply/similar retailer for the heavy-duty stuff. Again, be careful, good luck.
 
Round-Up now comes in a "permanent" version offering long-term coverage for walks and driveways. Regular Round-Up kills weeds but does not last too long, allowing use in gardens where you want to put in seeds or plants a few days after use. I used the new stuff very early this Spring on my front walk and patio, and still have no weeds.
 
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I use RM43 from Tractor Supply... it's a glyphosate variant.

https://www.tractorsupply.com/tsc/product/rm43-glyphosate-plus-weed-preventer-tvc-2-1-2-gal-1074456

2x per year usually keeps our gravel clear here in Southern AZ.

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Without a pesticide applicator's license one can no longer purchase Roundup with the active ingredient glyphosate. Bayer is very tired of the ridiculous lawsuits from homeowners claiming it caused their cancer(s). And before you dive in on the relative safety of any pesticide (yes herbicides are "pesticides" as are insecticides and fungicides), please know I have an earned PhD in pesticide biochemistry and spent my entire career in the crop protection field. Both glyphosate and 2,4-D are safe when used in accordance with label directions. Period.

Both 2,4-D and glyphosate are considered post-emergence herbicides meaning they work best when applied to the foliage of undesirable plants. Both are "systemic" herbicides meaning they translocate from the floliage throughout the plant thus exerting their activity in leaves, stems and roots. ALWAYS follow label directions! Not just a good idea; it's the law.

2,4-D is short for 2,4 dichloro-phenoxy acetic acid where the chlorine groups are located at the 2 and 4 positions on the benzene ring. It is our oldest synthetic herbicide having been introduced commercially by the Sherman Williams Paint Co. in 1946. Virtually no activity on monocots (grasses) at common use rates but has broad activity on broadleaf weeds (dicots). It works by mimicking a natural plant growth hormone. 2,4-D comes as an active ingredient in many brand name weed killers - you'll have to look at the active ingredient list to know. Two formulations, ester and amine. The amine is less volatile which means it has less tendency to move as a gas and adversely affect nearby vegetation but the ester generally works better. Safety or performance. 2,4-D has some soil residual activity (glyphosate does not) so keep it away from trees and shrubbery you like.

Glyphosate, if you can find some or have a license, has been around commercially since 1975 and did not see widespread use until Roundup-Ready crops were bred for resistance to the compound. Contrary to popular belief glyphosate does not kill everything but does possess quite broad control of many species, both grasses and broadleaves.

I've used both, extensively, and can tell you 2,4-D works significantly better in areas that are partially shaded or on tougher weeds like established poison ivy. Glyphosate works best in full sun. All herbicides work better on relatively healthy, actively growing, plants that are not under drought stress.

Bryan
 
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Not gonna lie, at first glance when I saw the subject "Best weed....", I wondered if I'd ventured onto the wrong forum:cool:

I've been using glyphosate safely for years. I recently used the Tractor Supply Farmworks 41% Glyphosate to nuke an acre of horse pasture before reseeding. It's the best deal I've seen so far.
 
I stopped using brush killers a few years ago due to all the controversy about their adverse effects on humans, insects and animals. Who do you believe?? My dogs are in all the areas I treat, sniffing around so I certainly don't want to subject them to anything harmful. Once or twice a year with a back pack sprayer sure took care of most plant issues with Glyphosate based concentrates.
Now I am "enjoying" poison ivy, bittersweet vine, pasture rose and wild rasberry plants once again. Ill let the next person who owns the property eradicate them..or not.
 
Gus may not rent pigs, but there are a couple of outfits here in Kentucky that rent goats. "Targeted grazing" may be available where you are. I once bought a kid with the intent of letting him graze a patch over the summer. However, the wife and children objected mightily to repurposing him in curry in the fall.
 
I worked for a company that made all sorts of weed/brush killers and one was invented specifically for woody brush/grass/weed/etc. and it is still on the market. It is especially good for poison oak and ivy. Walmart sells it online as well as many retailers where you live.

I agree that Roundup is on its way out. Problem with that product was that it was invented as a grass and weed killer and reformulated then sold as a brush killer, but does not work as well as products originally designed as brush killers.
 
I worked for a company that made all sorts of weed/brush killers and one was invented specifically for woody brush/grass/weed/etc. and it is still on the market. It is especially good for poison oak and ivy. Walmart sells it online as well as many retailers where you live.

I agree that Roundup is on its way out. Problem with that product was that it was invented as a grass and weed killer and reformulated then sold as a brush killer, but does not work as well as products originally designed as brush killers.
Iffen ya get the 51% it does......I use it in my fields for burn down.
 
Remedy, 1:3 with diesel fuel sure works well on mesquite, prickly pear cactus and other tough vegetation.
And cheaper too!! I went to home depot to buy some weed killer. After I saw the prices,I loaded up my empty fuel container(a metal one at that) and headed to the gas station.....On a side note..try and buy a metal fuel container, GOOD LUCK!!
 
I have been using a product called Buccaneer Plus for several years which has glyphosate and I find works as well as Roundup. However it is much cheaper. I get it at the local farm Co-op at half the price Amazon wants plus no sales tax in MO.
 
Unfortunately its Roundup. Really bad chemicals for humans and pets. Use good long cuff rubber gloves and staying upwind( if any) and high rubber boots if one has to walk in sprayed area. I always back out of any sprayed area.
Also, wash your clothes after you are done spraying, don't keep them 'till they need it'.
Take a shower too.
You don't want to be walking around wearing that stuff.
 
Bayer makes a brush killer, I add glyphosate (sp?) and a surfactant to it and it kills most everything including poison ivy and blackberry.

Kudzu is tough. First application kills the foliage, you then need to remove as much of that as you can. As new growth emerges, spray it again. Can take a couple years to wrap it up. I cleared about 5 acres this way, used landscape flags to mark where the sprouts would come up to make it easy to check every few weeks. I've since learned that if you just cut the crown off it won't sprout…more work but faster.
 
Read TXBryan's post and pay attention. It is the most definitive information I have read on this subject. I use Tractor Supply Glysophate for my drive and fence rows and 2-4 D on my yard for weed control. I would advise using the Amine 2-4 D as it is a salt solution and stays where you spray it. Butyl Ester 2-4 D gasses out and can spread to your neighbor's garden overnight. It does a really good job.

Another thing I just heard about was that a lot of Northern Wheat farmers are now sprayingheir crop when it's nearly ready to combine to make it dry evenly. Maybe we are all eating some.residual Glysophate in our bread and bisquits. :)
 
Keep in mind that "Roundup" is brand name, they have many formulations. The original was glyphosate which a lot of products contain, You do not need to be certified to purchase it.


 
I didn't say you couldn't buy glyphosate without a license. I said you cannot buy Roundup containing glyphosate without a license and that is correct. Bayer, as the patent holder, assumes the liability and they won't sell it to unlicensed applicators anymore. A liability they assumed through their purchase of Monsanto Corporation, I'm confident if they had it to do over again they wouldn't. Not that any of the lawsuits or carcinogenic scares are legit, they are not, but courts do what courts do. Glyphosate has many generic producers worldwide and the quality can be quite variable.

Watch out for homemade herbicides as they may defoliate but seldom work as desired and plants recover. And in fact some of them are considerably more toxic than commercial pesticides - particularly to non-target species. The days of commercial pesticides representing real danger for consumers is largely a thing of the distant past. Modern products must possess a favorable environmental profile in order to be registered for use in this day and age and they are under constant review.

If you want something that kills the entire plant look for systemic materials. If you want something to "last" look for something that has soil residual activity. Might have to do a little homework on the internet but that's not very difficult anymore.

Bryan
 
I just heard that DEF fluid (Diesel Exhaust Fluid) would kill vegetation too. It's active ingredient is 32.5% high-purity synthetic urea. It's only about $7 per gallon and supposed to be relatively toxic free. Has anyone else heard of using DEF fluid? I was thinking about giving it a shot and see if it works.
 
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