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Cheap Weed Killer????

Someone was asking for a cheap easy weed killer the other day, so when I heard about this, I thought I better post it here.

I heard today that undiluted household ammonia will kill weeds and do it within a few hours. You can apply it with a spray bottle or with a paint brush (don't use spray on a windy day because it will drift everywhere).

My bit of college Chemistry suggests to me this might really work and goodness knows a bottle of ammonia is cheap enough. If nothing else, I THINK the ammonia would be a bit safer to use than commercial weedkiller as long as you don't breathe the fumes. I'm going to try it and see for myself if this really works. If anyone else feels like trying this, please let me know how it turns out for you.

Comments

( 113 comments — Leave a comment )
bailey36
Apr. 15th, 2010 11:40 pm (UTC)
lol, I doubt if I'll risk all the fumes any time soon. but thanks. Boiling water works too.
rhodielady_47
Apr. 16th, 2010 12:20 am (UTC)
Nothing in this world is ever perfect.
Boiling water also gets rid of fire ants and burglars.
;D
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(no subject) - rhodielady_47 - Apr. 17th, 2010 10:19 pm (UTC) - Expand
(no subject) - faerieboy - Apr. 16th, 2010 04:15 pm (UTC) - Expand
Good Point. - rhodielady_47 - Apr. 16th, 2010 08:10 pm (UTC) - Expand
Good Point. - rhodielady_47 - Apr. 16th, 2010 08:11 pm (UTC) - Expand
rhodielady_47
Apr. 16th, 2010 12:21 am (UTC)
Happy Birthday to you!
:)

(no subject) - bailey36 - Apr. 16th, 2010 12:57 am (UTC) - Expand
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r0ck3tsci3ntist
Apr. 15th, 2010 11:46 pm (UTC)
My concern about ammonia is what it will do to the soil. Is there any info on that?
rhodielady_47
Apr. 16th, 2010 12:11 am (UTC)
The ammonia is SUPPOSED to evaporate and be gone in just a few days.
Most weedkillers hang around a while.
BTW--The idea is to use the smallest amount possible but still get the job done. You don't go out with a gallon of the stuff and just dump it on the weed.
:]

(no subject) - r0ck3tsci3ntist - Apr. 16th, 2010 12:17 am (UTC) - Expand
(no subject) - rhodielady_47 - Apr. 16th, 2010 12:29 am (UTC) - Expand
(no subject) - jennifleur - Apr. 16th, 2010 10:38 pm (UTC) - Expand
plantyhamchuk
Apr. 16th, 2010 08:22 pm (UTC)
Plants eat two sources of nitrogen. One of them is ammonium. As long as it gets diluted by watering or heavy rain it should be fine.
(no subject) - rhodielady_47 - Apr. 16th, 2010 08:50 pm (UTC) - Expand
(no subject) - plantyhamchuk - Apr. 16th, 2010 09:16 pm (UTC) - Expand
(no subject) - rhodielady_47 - Apr. 17th, 2010 01:11 am (UTC) - Expand
alafaye
Apr. 16th, 2010 12:15 am (UTC)
vinegar works very well too.
rhodielady_47
Apr. 16th, 2010 12:31 am (UTC)
Naturally it would and for about the same reason--the pH.
;D
mamculuna
Apr. 16th, 2010 01:22 am (UTC)
And I haven't noticed residue from vinegar.
(no subject) - alafaye - Apr. 16th, 2010 01:23 am (UTC) - Expand
leeneh
Apr. 16th, 2010 10:00 am (UTC)
Something even cheaper...
With boiled water I know I am not adding anything to the soil that may harm things I don't want harmed.
plantyhamchuk
Apr. 16th, 2010 08:27 pm (UTC)
Re: Something even cheaper...
OTOH, you're killing all the helpful microbes in your soil with the boiling water. No solution is perfect :/
Re: Something even cheaper... - leeneh - Apr. 16th, 2010 09:13 pm (UTC) - Expand
Re: Something even cheaper... - plantyhamchuk - Apr. 16th, 2010 09:17 pm (UTC) - Expand
Re: Something even cheaper... - leeneh - Apr. 16th, 2010 09:28 pm (UTC) - Expand
Re: Something even cheaper... - plantyhamchuk - Apr. 17th, 2010 01:05 am (UTC) - Expand
Re: Something even cheaper... - leeneh - Apr. 17th, 2010 04:56 am (UTC) - Expand
Re: Something even cheaper... - rhodielady_47 - Apr. 17th, 2010 05:41 am (UTC) - Expand
Re: Something even cheaper... - rhodielady_47 - Apr. 17th, 2010 05:53 am (UTC) - Expand
Re: Something even cheaper... - leeneh - Apr. 17th, 2010 06:29 am (UTC) - Expand
Re: Something even cheaper... - rhodielady_47 - Apr. 17th, 2010 07:47 pm (UTC) - Expand
Re: Something even cheaper... - leeneh - Apr. 17th, 2010 08:19 pm (UTC) - Expand
Re: Something even cheaper... - rhodielady_47 - Apr. 17th, 2010 10:06 pm (UTC) - Expand
Re: Something even cheaper... - rhodielady_47 - Apr. 16th, 2010 08:34 pm (UTC) - Expand
Re: Something even cheaper... - leeneh - Apr. 16th, 2010 09:10 pm (UTC) - Expand
azn_enchantress
Apr. 16th, 2010 01:36 pm (UTC)
LOL - when I read your post title the first thing that popped into my head was 'pee?' which has ammonia in it, and goes into the environment anyway
rhodielady_47
Apr. 16th, 2010 08:19 pm (UTC)
Kinda makes you wonder doesn't it?
(Giggle!)
;]
(no subject) - plantyhamchuk - Apr. 16th, 2010 08:24 pm (UTC) - Expand
(no subject) - rhodielady_47 - Apr. 16th, 2010 08:47 pm (UTC) - Expand
(no subject) - leeneh - Apr. 16th, 2010 09:14 pm (UTC) - Expand
(no subject) - rhodielady_47 - Apr. 17th, 2010 05:55 am (UTC) - Expand
primsong
Apr. 16th, 2010 02:34 pm (UTC)
I haven't tried ammonia, but vinegar works fairly well and the ph resets in about three days. I haven't found it effective with larger weeds but it gets the tender young/small ones, which is nice if you have an area that's coming up with a mat of weed seedlings. Recipe I use is a gallon of vinegar, a tall bottle of lemon juice and a little squirt of dish detergent in my sprayer - some recipes have salt in them as well, I wouldn't use it tho' as it stays in the soil.
rhodielady_47
Apr. 16th, 2010 08:17 pm (UTC)
I've been thinking about this.
Perhaps on your larger, tougher weeds you might like to try using straight vinegar that's been boiled down a bit to make it stronger. One thing for sure; it would definitely lower the pH (make it more acid).
Adding the liquid soap is a good idea since it helps the acid cling better.
:]
( 113 comments — Leave a comment )

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