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Natural Weed Killer 1 gallon vinegar, 12 cup salt, dash of dish washing detergent (makes it stick to the weeds). Mix well, spray on weeds in the morning, rejoice in their death that evening. This works best on a sunny day.

Natural Bug Spray For The Garden. :
Mark Bentley's profile photoTyson Adams's profile photoRichie Donovan's profile photoRob Smith's profile photo
12 cups seems kind of like "overkill"  hehe
Twelve cups of salt? Kill weeds yes, because nothing will grow there for the next decade! It just has to be a half cup. Twelve cups would overflow a gallon jug!
the soap makes it stick to the plant applied destroys the cell walls of plant and starves plant of moisture...hence good on a sunny kot appky to the point of dripping off in puddles and surrounding plants will be just fine
of course removing drad plant material prior to a rain or heavy dew will also stop any possible leaching
So, do you really use THAT MUCH salt???
The weeds are gone, but now your yard smells likes the Gynecology clinic..
Are there any detrimental residual effects lingering in the soil? I'm concerned about the high concentration of salt in the mixture.
+Steven Wells I would also be concerned about salt concentration if that twelve CUP figure is correct!
I get the feeling that "12 cup" is a typo.
Because if it was then wouldn't "cup" be spelled "cups" as there is more than one.

I get the feeling it's supposed to say "1/2 cup" as in, half of one cup.
This only works above ground, and won't hurt the roots. 
I wonder how it smells right after.
Meh. Just a standard desiccant that will battle to work in anything other than ideal conditions. Plants are pretty hardy things, so these sort of mixes don't work that well, and the amount needed to do the same thing as a real herbicide is astronomical.
I'd hesitate to use aggressive chemicals like vinegar in my garden. The whole point of modern herbicides is that they are just as effective as 'traditional' substances but far less damaging to nature.
Caesar used to salt the fields after he conquered an enemy. This made it so those people couldn't grow their own food and must rely on Rome. I don't think salting your own field is what you want to do. If you notice the picture is of a gravel walkway. Not a flower bed or garden. 
Sounds perfect for gravel paths. Maybe not for garden beds.
I use this all the time, but only use it where you have no intentions of ever growing anything (driveways, walkways). Does kill the roots and the salt does reduce (but not eliminate) new growth. I use a sprayer to reduce hitting plants i want to keep and i keep a wide boundary around those.
+Ralph Mettier Roundup is just one chemical shy of becoming Agent Orange! Not what I would consider safe or environmentally friendly.
+Rob Smith That is blatantly false. Why would you lie like that? Not only is glyphosate one of the safest agri-chemicals ever, it isn't even in the same chemical group as 2,4,5-T nor 2,4-D.

And not only that, neither of those chemicals were the problem, it was the contamination with TCDD. So you are fear mongering for no reason and doing so from a point of ignorance.
The info I pass along was from an article I read about five years ago that supposedly compared the two, showing their chemical makeup.
C Ames
There was a chemical put on a field a few years ago that was not supposed to get wet.

It was October. It rained.

Apparently, when mixed with water, this chemical aerates and becomes a chemical used during WWII for chemical warfare. I and several others ended up in the hospital with lung damage. I will stick with salt and vinegar, thanks. 
I tried using cleaning strength vinegar. Destroys the folliage within an hour. Even after repeated uses it does NOT kill the roots. Mainly used on dandilions.
Caved in, decided my hours and hours per week weeding were ridiculous not worth my time. Called a local lawn care place. Now my lawn looks good. 
+Tyson Adams, I didn't author the article, it was merely one of many that came up using Google and the search terms Agent Orange and Roundup. I also am not a chemist; perhaps you are. You've mentioned two different terms in your comments above, glyphosate and glyphosphate. Is this a typo, or are you perhaps confusing two different substances? Also, one of your links above refers to glyphotech. Is that yet a third substance. Just curious. When I see one article, I might question the validity, but when I see literally hundreds, coupled with the fact that many nations have banned the use of this stuff, I have to really wonder who is not telling the truth!
Typo. And it isn't glyphotech, that is just the web address. Which means you didn't read the link to see that the claims made in those articles you were referring to are lies.

And the articles that you are referring to are rubbish. Just because a heap of webpages say something doesn't make it so. I could also link to heaps of webpages that say Elvis is still alive: doesn't make it true. The FACT is that glyphosate is perfectly safe, as shown in the science and in the technical data sheet I linked.
Well, he's either dead or he was abducted by aliens. The history is unclear on that one.
Works awesome yes but will also kill flowers and grass so be careful where u spray ;)
e's just a couple of links. Maybe these countries are setting policy based on lies, or, maybe it is actually the truth, and the research you cite is false.

I stopped checking at 30 pages of links on the search terms "Roundup and Agent Orange." 

And here's what came up using the search terms "nations ban roundup." Maybe these are lies as well, eh +Tyson Adams ? 

Like I stated above, I am not a scientist, chemist, etc.  I am just a guy who tends to read a lot and is concerned about some of the things that companies are doing to make a profit.
C Ames
The Science on what is safe as well as what is not changes every few years or so. Look at eggs. 
This is a statement from one of your links.

"Some plants have been genetically engineered to be resistant to glyphosate. Glyphosate-tolerant soybeans, corn, cotton, and canola are examples of such plants. This fact sheet does not address glyphosate-tolerant crops."

Just the fact that these crops had to be genetically mutated to be resistant to Roundup should cause alarm.

BTW, some of the latest data out says that organic farmers are concerned because their organic crops are being cross pollinated with the genetically mutated crops.

Also remember that it took twenty-five years to conclusively prove a connection between Agent Orange and the harm it was causing. Also, Agent Orange is just the most widely publicized variant of herbicides that were used and caused harm to both our troops and Vietnamese citizens.
Another statement from the same link that you provided above +Tyson Adams ...

"Signal words for products containing glyphosate may range from Caution to Danger. The signal word reflects the combined toxicity of the active ingredient and other ingredients in the product."

"Animals exposed to formulated glyphosate herbicides have displayed anorexia, lethargy, hypersalivation, vomiting, and diarrhea. Symptoms persisted for 2 to 24 hours following exposure. The surfactants in formulated products are thought to be responsible for the clinical signs."
And now you are just showing blatant ignorance. Not only is genetic engineering safe, you'd battle to find a food that we haven't altered in some way. Half of our staple foods are mutated or natural GMO cultivars (look up potatoes, ancestor was a natural GMO that wasn't poisonous). 

As to the cross-pollination claims: the organic crowd love to wave that flag to market their over-priced foods. GM has been shown to be safe.

And I've already explained agent orange's problems were about contamination with TCDD. Which has nothing to do with glyphosate and is you using the logical fallacy poisoning the well.
And now you try to blame glyphosate for something that is the wetting agent being drunk by animals.

Also, have you not heard of with-holding periods? Agriculture uses them so that animals aren't exposed to the chemicals. The vinegar, salt and detergent brew in this thread would be dangerous for an animal as well (remember LD50 of 3g/kg for salt).
WTF? Diquat is not in roundup. Did you even read the page you cited? It was an alphabetical list of chemicals.

If you are seriously going to try and make such a stupid claim as to say diquat is in roundup, especially when the link you provide doesn't say that at all, then it is quite clear that you have nothing to say other than "I, Rob Smith, am sorry I wasted people's time with my ignorance on this topic."
C Ames
If a chemical is meant to KILL what you call a weed, why would you want to eat anything like that? No matter who says it is safe. Btw a weed is only a plant growing in a place where it's not wanted. 
+C Ames Well a chemical that kills a weed isn't necessarily harmful to people when they eat it. And there are with-holding periods which restrict when you can spray food crops so that the chemicals have time to breakdown before they become food. So it isn't a concern.

It is also worth noting that most forms of agriculture use chemical weed/pest control. Even organic ag uses toxic chemicals for weed/pest control. In some instances organic uses nastier chemicals than conventional (like the cupric pesticides). Organic even uses Bt, the thing they complain about in conventional and GM crops.
Lol, I like the comment "just smoke them"
+Rob Smith Roundup is Agent Orange.  Today, it's made stronger than original Agent Orange.
+Tyson Adams You're welcome to drink your fill of glyphosate if you think it's one of the safest agri-chemicals ever.  Take a bath with it when you're done drinking it.   Anyone else that wants to advertise how safe a herbicide is,  is welcome to do the same.  Tell us how safe it is after you've done that.   I'm not against agri-chemicals.  There's a place and time for them.  I'm just against people advertising how safe they are.
+Richie Donovan where did I advise drinking glyphosate? Where did I claim that safe meant you should disregard all the safety information around chemical handling and use?

Seriously, your argument is one great big logical fallacy.
+Tyson Adams You mentioned that glyphosate was one of the safest agri-chemicals around.  I just offered you to drink as much of it as you want if it is as safe as you made it out to be.  This thread is about vinegar being used as a herbicide.  We are able to drink vinegar-not that it taste very good.   How safe was that glyphosate compared to vinegar?
More fallacies. Not only are you continuing the same erroneous argument, but you are now trying to say that somehow vinegar is safer without referencing any facts.

The LD50 of acetic acid (vinegar) consumed orally is 3,310mg/kg which is lower than that for Glyphosate at 4,000mg/kg. Thus, technically glyphosate is relatively safer to consume.

But again, I never recommended doing so. Nor is that the way you fully assess safety. But not just that, it is a stupid argument and smacks of anti-science rhetoric and flat out ignorance. 

And no, this thread isn't just about vinegar. I never raised glyphosate. I actually originally commented to state what vinegar and salt does as a herbicide and how it won't be effective in a lot of situations because of how it works. When someone else raised the tired trope of glyphosate safety I then corrected that. You are now trying to continue the tired trope. 
Also Richie, your claim about agent orange I've already debunked. If you want to lie to people, then you get to be labelled a liar.
+Tyson Adams 
 You're right.  I'm a liar.   Here's your cookie for the day.  Now go play with your toys in a corner some place.
Oooo, passive aggressive losing. So grownup.
 I had other things to attend to besides entertaining you.   I also didn't want to read in the paper and see that some idiot commited suicide by drinking some agri-safe herbicide just to prove their point.
I bowed out of the conversation when it turned into some egotistical name calling, but I see he's at it again. He cannot win an argument, and so turns once again to name calling. How childish that is. Take care +Richie Donovan.
Hey +Richie Donovan, how about we put young +Tyson Adams up to a dare. We both drink 4 oz of Apple Cider Vinegar for a week, and Tyson can drink the same amount of Roundup, and we'll see who checks into the ER first. After all Tyson, you did say that your choice is safer, didn't you?
+Rob Smith That's a great idea.  I had posted a crap full of links that supported my side of the conversation.  One of them had to do with people drinking products containing glyphosates.  I see most of the links have been deleted.  
BTW, I drink a shot glass of Apple Cider mixed with 7 oz of water at each meal, to help with my blood sugar levels and cholesterol. Personally, I would not recommend doing the same with Roundup, but as Tyson has stated that vinegar is more dangerous, I figure he must know something I don't, hence the dare. BTW, I end my day with a shot of lemon juice as well.
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