Weed Killer

[ROANIN]

Saw a post a while ago about making weed killer using vinegar and something else. Cannot find the post now. Can someone repost the formula?

Thanks,

R

[Oren]

I posted this video awhile ago. It mentions using _heated_ vinegar and salt. Heating the vinegar helps the salt dissolve easily and then sprayed on weeds in driveways and sidewalks.

Came from University of Nevada Cooperative Extension.

[ROANIN]

Thanks Oren

[cshenk]

"ROANIN" wrote

I just use the cheap white or pale golden stuff sold by the gallon at the food store. Use straight. Another adds salt which seems harmless.

[JimT]

You may have been talking about 1 pint (20% garden vinegar) and 2 tbls citrus oil but try the heated method too. I'm still having trouble with certain types of weeds. I'm going to look into Oren's link next time.

Jim

[Oren]

I read the post, using vinegar and citrus oil.

Using salt, instead the formula would be:

One glass of vinegar, heated.

4 tbls of salt added, stirred to dissolve the salt.

A bottle sprayer is then used to spray the weeds.

I've not tried either method, yet. My neighbor was spraying his front rock landscape recently with Roundup. I'll try the heated vinegar and salt to try and kill some weeds he missed. Just for giggles.

[RickH]

Can anyone say how effective this is?

It sounds perfect for "flooding" my patio pavers so it goes deep between them without leaving a toxic residue soaking into the brick. There is a restaurant supply here that has great prices on vinegar. It will clean the pavers too if I use it as an acid wash and get killer down between the pavers at the same time while scrubbing. Please post how effective it is as a weed kill. I suppose muratic acid will work too but that is really harsh.

[salty]

Roundup kills the ROOTS so the weeds go down and STAY down. Vinegar is a very temporary measure.

[dpb]

Oren wrote: ...

Just remember to not use something like this where expect to have any other cover any time. In a rock area, patio, sidewalk cracks, etc., it'll be ok but don't use it to spot stuff in the yard, for example. The salt will be a real problem in that case for quite a long time.

--

[Jim Elbrecht]

-snip-

Once a year use an 'all season' weed killer. It kills the weeds and prevents seed sprouting for 3-4 months.

I spray my 5-600sq foot patio in about an hour in May. For $20 -- then forget it til next year.

Jim

[RickH]

But I dont want roundup soaked into the brick as a residue.

[willshak]

Are you planning to plant some flowers or vegetables between the patio bricks? FWIW, I dump the muriatic acid used to clean the pool's DE filters fingers on the patio after I close the pool for the season. The freakin' moss and weeds still comes up between the bricks the next year. I also spray the patio with roundup in the early spring. I spend a lot of money trying to get grass to grow in my clay filled lawn, but a few grains of windblown dirt on my patio is enough to support a sprout of grass between the blocks. Go figure! In case you are wondering, this patio was built using more than the appropriate underlayments. The trenches were over excavated, much to the dismay of the contractor who had to use more gravel and sand than usual for the contracted price.

[clare]

In about 14 days it's all harmless salts anyway, apparently. No worse than vinegar, and likely better than the salt and vinegar mix.

[Roy]

=3D=3D That Roundup residue won't hurt anything as it rapidly breaks down on contact with soil. I'd worry more about acidic soil and salt buildup using vinegar and salt. Using muriatic acid is also just plain dumb as it is corrosive and poisonous. =3D=3D

[salty]

Roundup doesn't stay long. It is bio-degradeable and breaks down pretty quickly.

[salty]

You can plant flowers and most vegetables 48 hours after apllication of roundup. It is designed to do its thing to existing roots and then break down rapidly. It doesn't linger in the soil.

[RickH]

Same problem. Mine has an 18 inch bed of gravel topped by a 6 inch bed of limestone screening topped by the pavers and pavers are tightly butted. Weed seed still gets in there. I want to "flood" the whole patio rather than just spray the joints so I can get killer down, but dont want chemical hebicide imbeded into bricks. Spraying the joints literally takes all day, I want to flood whole patio with a non-toxic herbicide and watering can maybe once a month.

[RickH]

My paver manufacturer recommends muratic for regular cleaning.

[RickH]

This is not soil, it is pavers soaking up a herbicide where we sit as outside living space, that is waht is un-appealing. Vinegar and salt is harmless if pavers soak that up and people walk on it barefooted.

[jamesgangnc]

e quoted text -

There is a replacement for triox that I've seen in lowes. Your vinegar/salt is probably ok for what you are trying to do. Are your trees all reasonably far away? I'd don't know how environmentally friendly it is but I have also seen discussions about wiping the pavers down with used motor oil. Apparently also leaves a nice patina.