What can you all suggest, available at a consumer level, that kills weeds well? I am trying to rid my driveway of weeds and they mostly laughed at Round-Up. What % of Glyphosate should I look for? Does the Surfactant make enough difference to justify its use?

If you buy the 41% stuff and mix it at 4 oz/gallon of water it should kill just about anything. If you really want to nuke stuff mix in some 2,4-D. Just about all glyphosate has plenty of surfactant in it, but if you want to make sure then buy some cheap dishwashing detergent and mix some in. It'll do as well as crop oil or other surfactants sold at 100X the price.

2-4d or “brush killer”. You can mix roundup with brush killer and kill it all:grass , broad leaf, and Woody species .

The brush killer will also have 2-4d in it plus an additive so don’t be confused by the label.

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Regular Roundup should work just fine, just be sure to mix it with very clean water because the dirt in a lot of the water you might find will deactivate the key ingredient. I always use culinary grade water and it makes a difference.

Remember, this stuff needs warm temperatures to work it’s best. And don’t expect overnight results. It generally will take 4-5 days before you will notice it is working.

Tordon will kill anything. Never spray when weeds or grass are stressed. The spray will not work as well.

I use Round-up concentrate and mix it a little hot ( 7 fl. oz. per gallon).

I use round up, kills cshit out of my driveway weeds

Diesel

Any herbicide seems to work best on well watered plants that are actively growing and don't cut them down after spraying until they are thoroughly dead. Let the herbicide migrate down to the roots. Surfactant in my opinion almost doubles the effectiveness of herbicide.

Any glyphosate with 2-4-D ester. Dont mix amine with glyphosate as it is not very compatible and less %. Mix on the heavy side and it will die. You wont find ester in stores unless you have a license. Hope you have a farmer friend and they could get you hooked up.

51% Glyphosate, use 10 oz to 1 gallon of water. Wait 2 weeks to see results.

Cornerstone 5 Plus from the Co-op is the best, longest lasting that I’ve found. I don’t use surfactant with it.

Cracks in the driveway? Diesel fuel.

Osky

Shane,
Amine400/2,4-D and 41% glyphosate from the local farm store. We have some roundup/glyphosate resistant weeds here in Michigan now , the above combo will work on them well. Weed sprays have more than doubled in price here in the last couple years.

PM for more info ,if you wish.

Been using plain ole well water for 30+ years ,no problem here.

Laffn...

At least doubled in price.

I use glyphosate or the amine 2/4-d on most stuff.

I do buy some 30% vinegar to kill drive way grass though.

If you are just doing a driveway, do it on the cheap.
Per gallon of vinegar, 1 cup salt and a tablespoon of dish soap. Mix well.

I used to use Roundup 365 regularly but the weeds always just seemed to grow back nearby. I have since switched to Kleenup. It kills a bit slower but lasts much, much longer.

What the heck is "culinary grade water".

A fancy Utah name for city water (as opposed to Ag water)?

Reverse osmosis treated water?

Store bought water?

Propane torch.

I had poison ivy all over this place when I moved in. I bought some 41% glyphosate and mixed it strong,...added some dishwashing detergent.

I walked the whole place every couple of days with a 2 gallon spray bottle and doused every sprig of poison ivy I'd see. It killed it permanently. It's rare to see any poison ivy on my place now.

41% glyphosphate. 4 oz to the gallon. Will kill grasses and most young non woody plants.

Plus 2-4-D at 2 ounces to the gallon will kill most any non woody plants.

2-4-d is better for killing broadleaves.

For a driveway I use a ground sterilant from the local farm store. I can’t remember the active chemical in it. It keeps new plants from sprouting, where as the round up and 2-4d only kills the plants it touches when being sprayed.

I think the plan going forward is another HOT dose of Glyphosphate to kill off what is there.

Then some Pramitol 25E to sterilize the ground.

Eventually, I have a guy coming to rework the driveway. It has a very good tight stone on it that the previous yahoos covered with limestone chips. It is a mess. But for now, I just want to clear off the vegitation.

Thanks to all

Just to let you know that Roundup has no residual time at all. It kills on contact but is absolutely nil after that. That’s why you can spray a field with roundup and seed it the same day. Edk

RM43, I get it at Family Farm and Home store.

As for the suffacant, it's necessity depends on what your trying to kill but yes it will make a difference on most things.

I am using white vinegar, salt, dishwashing liquid (Dawn). It kills quickly but everything grows back. I need to find something that kills to the roots.

Weeds come back. Its a thing.

There is a reason they call it maintenance.

Two terms to learn in weed "control" Preemergence and Postemergence.

Not just any dish soap use Dawn original

8 oz per gal gly 41%
4 oz per gal non ionic surfactant
I add a liquid ams because my water is hard
If no non ionic add the dawn

Yep, I have a rather prolific silver maple in the back yard and I took the top of a seedling off with my weed eater and it came back. The farm store sells a long wand propane torch and when I hit that seedling with the heat, it croaked and didn’t come back. Weeds stay gone too. There are two versions of Roundup. The homeowner version is weaker than the contractor version. I don’t like the residuals from Roundup for other plants/trees that I want to keep.

You can jack around with it lots of times, or you can spray this stuff on, and be done with it for a year.

It also keeps other weeds and grass from growing after you spray. (Don't use it on your lawn. Just driveways, fence lines, and other areas you want rid of weeds and grass.)

Yeah, I might as well just use that stuff. Thanks!

I got turned on to a product called Tribune, 3oz of home owner grade roundup with 1oz of Tribune, it nukes everything.

Never heard of it, so ducked it. Actual term is “food grade” water, simply RO water to avoid mineralization in a commercial kitchen and steamers.

Grandfather had big cans of Roundup on the farm. I suspect quite a bit stronger than we can get today - always mixed it with well water. It worked and that big tank of COLD water/mix on your back was welcome while spraying.

Just did my driveway with 18% Roundup, 6oz to the gallon. Did it in two parts, and the second time revisited any stubborn stuff from the first. After a week or so, I burnt off the dead stuff with my propane flame thrower.

Anyone that sprays much needs a good electric sprayer. Mine, a My4Sons (or some such) from Amazon works like a champ. Gotta keep the lead-acid battery topped off, but it supposedly will do 200 gallons on a charge. Most I’ve done is maybe 10. It hold 4.5 gallons and I drag it around in one of those plastic duck and deer boats instead of on my back. Got the hose extension too.

Good points.

I bet the millions of gallons of round up sprayed on the ag fields around the world only use culinary grade water.

8 oz/gal ??

I use 3 oz/ gal for general spraying. Fence rows. Food plots. Garden spots.


Dead is dead.

+1

This

9 or 10 gallons of vinegar would cost as much as Roundup, and salt ain’t free. My driveway is 50 yards long.

+2

Up here 4-5 oz won’t work and super dead is super dead
We are adding liberty 24-d or sharpen to the mixes and super high rates of gly

Around here we have residential drinking water and then a separate water system that's used for irrigation purposes. The drinking, or culinary water as it's often called is treated and cleaner. The irrigation system, or secondary water as some folks call it in this area is untreated and has dirt. It often has enough dirt in it that it will deactivate some herbicides. I was just saying that we have better luck using our residential drinking water for mixing with herbicidal concentrates.

Only pure spring water works for killing weeds here

What about the dirt the weeds and grass are growing in. Doesn't kill the herbicide?

Ryobi makes one that uses the same 18V batteries as the rest of my garage...I will probably get one of those soon. Got lots to spray next spring.

Yep, the dirt will deactivate the mix but doesn't matter much since it works by absorption through plant tissue above ground when sprayed on the plant. I'm careful to not apply it if there's any kind of a breeze because the stuff will drift and raise hell with the garden. High temperatures will also contribute to the stuff translocating to where you don't want it so I try to only spray it when temps are below 70 degrees.

Same. It works.


Took 2 weeks for the tall, bull thistle to shrivel up and die but ded dey is along with the other weeds around them.

Yes. Roundup sold as about 50% active ingredient mixed 3 to 4 ounces with 3 gallons of water should kill it all. About a tablespoon of Dawn Dish detergent added to that mix is all the surfactant one will ever need.

I go thru 4 gallons per week using Ace hardware or Spectricide brand of grass/weed killer. 7oz per gallon definitely kills everything. I may try what others suggested and use a little Dawn detergent, guessing it helps the chemical to stick to the weeds better.

24d is not a grass killer it kills broadleafs. I spray wild onions and broadleafs in my grass with 24d in the spring it never kills the grass. It will kill everything if you put it on really heavy. But if it is humid and hot it will drift and kill things you don't want dead.