Using salt water as herbicide

Because salt will build up in the soil and the soil will become more unhealthy over time. If you want to plant grass or other plants in that area I would use it minimally. Weed killers like glyphosate just work better and go inert in the soil.

Sounds like for spraying under/around a raised house it would be perfect. If nothing grows there in the next 1000 years thatd be fine with me.

I also use 30% vinegar. I have found that diluting it at 3 parts vinegar to 1 part water is very effective. My primary use is spraying thistle on some acreage we have in CO. There is so much of it, diluting is saving me some money while still being lethal to the weeds.

I just know in the Bible they used to salt the fields of their enemies to starve them to death. Im assuming it'll kill basically everything except marsh grass.

My local lowes usually has the 30%

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Why not use plain ol salt water as herbicide around the house? Im

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Salt would work to kill vegetation however, I think it would take entirely too much of it to be cost effective. It would take an incredible amount of salt to make that much salt water.

More of a concern to me would be the corrosive nature of salt. I would be concerned with corrosion of anything metallic coming into or out of you house under the soil (eg. cast iron sewer lines, seater service, power service, etc.). Another concern would be corrosion of rebar in your foundation.


I think a better option would be something like RM43 from Tractor Supply if you want to sterilize the soil.

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More of a concern to me would be the corrosive nature of salt

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Glyphosphate is a salt and is corrosive as hell. I'm not too worried about this.

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would take entirely too much of it to be cost effective

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I haven't done the math yet, but I'm going to mix it to whatever the concentration of grand isle water is and try that

I just put a box of salt in 3 gallons of water and let it rip. I think that was too much because it looked saturated spraying it kn the concrete, but that may have been old herbicide in the line or something.

Will post results when available.

Update -

3 days later and some stuff is dead as a doornail, some no signs of any effect.

I noticed while spraying that some of the especially waxy plants would bead everything off the leaves and little would get to the base of the plant close to it. I decided to just carry on as normal for the first pass to see what would happen. Those mostly are what appears unaffected right now. It also rained heavily about 7 hours after I sprayed it.

I will wait until it has been a full week for final BDA. Next round i will either add some soap or make a conscious effort to spray the ground. Havent decided which yet.

Total investment in experiment so far - $2.