All Things Gardening forum: Weed killer recipe

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Name: Char Mowatt
Stockbridge, GA (Zone 7b)
"Let the earth bring forth..." Gene
Cateyes856
May 27, 2016 1:47 PM CST
Hi Everyone,

I just got a recipe that is supposed to dry up weeds.
Vinegar, dish liquid, salt.
Has anyone used this? Can you help me with a complete recipe?
My auntie doesn't use recipes 😉.
Thanks
Char...retired and loving it!
Name: Deb
Pacific Northwest (Zone 8b)
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Bonehead
May 27, 2016 2:21 PM CST
Found this online which has many variations of 'Grandma's' weedkiller. I tried some sort of mix (can't find my notes re precise recipe) using these 3 ingredients and did not have good luck with it. But I may just be impatient - I tend to just pull weeds. Good luck, and let us know if you have success!

http://www.garden-counselor-lawn-care.com/vinegar-weed-kille...
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Name: Jay
Nederland, Texas (Zone 9a)
Region: Texas Region: Gulf Coast Charter ATP Member I helped beta test the first seed swap I helped plan and beta test the plant database. I was one of the first 300 contributors to the plant database!
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Horntoad
May 27, 2016 2:36 PM CST
This is not that very effective and can contaminate the soil. This will only top kill the weeds not the roots so the weeds will come right back. Also, while the vinegar and dish soap will decompose, the salt won't. It will remain in the soil making in unsuitable for many plants and other beneficial organisms in the soil.
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Name: Bob
Vernon N.J. (Zone 6a)
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NJBob
May 27, 2016 4:54 PM CST
I have used 1 gallon vinegar - 2 cups Epson salt and a quarter cup Dawn dish soap. It works but I do not use weed killers in my gardens just the gravel driveway . paths and patio. I do not use roundup and similar products by my dog.
Name: Sandy B.
Ford River, Michigan UP (Zone 4b)
(Zone 4b-maybe 5a)
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Weedwhacker
May 28, 2016 7:46 AM CST
I agree with Jay -- I wouldn't use salt in any area where I wanted anything to grow; in fact, I somewhat think it might encourage weeds to grow, rather than desirable plants, because many weeds are so tough.
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Name: Char Mowatt
Stockbridge, GA (Zone 7b)
"Let the earth bring forth..." Gene
Cateyes856
Jun 11, 2016 7:27 PM CST
Thanks Everyone! Hurray!
Char...retired and loving it!
Name: Arlene
Southold, Long Island, NY (Zone 7a)
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pirl
Jun 11, 2016 7:32 PM CST
I use plain ordinary vinegar, no additions, for our brick. It works fast and very well.
Minnesota (Zone 3b)
RpR
Jun 21, 2016 11:03 AM CST
Now ten years ago or so, I had five plus gallon of gasoline that was over ten years old.
It came in the tank of a car I bought.
My driveway parking lot was full of weeds so I put it in a watering can and covered the driveway.
It did not spread out and kill the lawn next to the driveway and was dry in minutes.
Lasted for several years and for awhile my driveway smelled like fresh varnished table top, literally.
Gasoline, unlike weed killers, loses toxicity quickly; the components you smell are the most dangerous ones and they evaporate.
This is only for non-garden weeds and the older the gasoline the more effective it is as it sticks.
Name: Bob
Vernon N.J. (Zone 6a)
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NJBob
Jun 21, 2016 6:52 PM CST
That could get you arrested or fined any place I know of. Hope nobody uses ground water from that area. You would be making the ground toxic that is why the weeds do not grow.
Minnesota (Zone 3b)
RpR
Jun 21, 2016 8:39 PM CST
NJBob said:That could get you arrested or fined any place I know of. Hope nobody uses ground water from that area. You would be making the ground toxic that is why the weeds do not grow.

It is less toxic than Roundup type weed killers.
Roundup and its equivalent are soluble with water, varnished gasoline is not.
It is impossible for the remnant of gasoline to enter the water table.
I have had a streak of dying grass after a rain storm days after I put garden shop weedkiller in a non-garden area but heavy rain washed it onto the lawn several days later.
The streak of dead grass shows exactly where the water flows.

As I said the truly toxic components of gasoline are the light compounds you smell which evaporate, you can take very old varnished gasoline, they call it that for a reason, and paint it on wood for preservative reasons and it works even better with old engine oil, in hours but are absorbed into the green weeds quickly.
What is left is equivalent to the compounds of gasoline from boat motors that leave a slick on water.
Not pretty but not dangerous.

This is not the same, in any manner, as a underground storage tank where the gasoline components do not evaporate and its entire content of components enters the water table.
For decades here in Minn. the highway dept. would spray hot used oil on weeds along roadway shoulders to kill them.
Yet our only water quality issues are from garden/farm fertilizers not the oil spraying, although garden/farm weed killers are being looked at.

I had it and used it to great effect but i do not go looking for varnished gasoline or store any for that reason.



Name: Bob
Vernon N.J. (Zone 6a)
Charter ATP Member Plant Database Moderator I was one of the first 300 contributors to the plant database! Forum moderator Heucheras Echinacea
Hellebores The WITWIT Badge Dog Lover Lover of wildlife (Black bear badge) Region: New Jersey Celebrating Gardening: 2015
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NJBob
Jun 22, 2016 8:12 PM CST
Up to you but I have a well and would not use that . Oil by the roads was made illegal many years ago here as trace elements were showing up in the wells.
Name: Sandy B.
Ford River, Michigan UP (Zone 4b)
(Zone 4b-maybe 5a)
Charter ATP Member Celebrating Gardening: 2015 I was one of the first 300 contributors to the plant database! I helped beta test the first seed swap Region: United States of America Region: Michigan
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Weedwhacker
Jun 25, 2016 7:37 AM CST
I don't see how Roundup would get washed away to anywhere, unless used totally improperly.

And, just because the used oil was sprayed as a weed killer for years doesn't make it a good idea... DDT was used for years, too.
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Name: Debbie
Ventura County, CA
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ChefDebbie
Jun 29, 2016 10:25 AM CST
To increase the acidity in plain vinegar, I add lemon juice (from the bottle). The high acidity does great on the clovers or undesirable things growing on my patio, even the crap that grows between the pavers! I don't put anything else in, just vinegar & lemon juice.
A transplanted New Yorker now living in Southern California.....
Minnesota (Zone 3b)
RpR
Jun 29, 2016 1:37 PM CST
I bought it at T.J. Maxx so it was an odd ball type thing but their is cooking vinegar with a 25 percent concentration available.

It is SURIG essex-essenz made in Germany. $2.21 for 14 oz.
Name: Debbie
Ventura County, CA
Cat Lover Region: United States of America Salvias Region: California Herbs Enjoys or suffers cold winters
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ChefDebbie
Jun 29, 2016 3:56 PM CST
Thanks so much for that info, RpR. I wouldn't have known that. I'm going to my local TJ Maxx now to look for it. I was getting a 1 gal jug of vinegar, 5% for $3 at walmart. With the higher concentration, I'll use less & it will be more effective. Hurray!
A transplanted New Yorker now living in Southern California.....
springfield MO area (Zone 6a)
I was one of the first 300 contributors to the plant database! Plant Identifier
Frillylily
Jun 29, 2016 7:05 PM CST
Weedwhacker said:I don't see how Roundup would get washed away to anywhere, unless used totally improperly.

And, just because the used oil was sprayed as a weed killer for years doesn't make it a good idea... DDT was used for years, too.


I don't know either, but it does say on the label not to use near waterways, maybe because of direct overspray? I don't know.

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