Caustic soda

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Susie Sweetpea
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Caustic soda

Postby Susie Sweetpea » Mon Mar 02, 2009 2:29 pm

I would be grateful for some advice on caustic soda. We believe that one of our new plotholders plans to put caustic soda on half of his allotment then cover it over with plastic for a year. We have never come across this as a way of killing off weeds. Is this safe to do, bearing in mind the plot is near a stream and there are children on site? Also, will it be safe to grow plants in the soil after a year?

Any advice gratefully received.

Thanks,

Susie Sweetpea
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alan refail
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Re: Caustic soda

Postby alan refail » Mon Mar 02, 2009 3:06 pm

Hi Susie and welcome to the forum

Your fellow plotholder sounds dangerous and not much of a gardener :!:

I must admit that I have never gardened in chemical warfare mode. For some authoritative information on caustic soda, its use and danger, see the Dow Chemicals site.

If your plotholder starts like this, what should you expect in the future?
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Re: Caustic soda

Postby John » Tue Mar 03, 2009 12:14 pm

Hello Susie
I can't see the point of using caustic soda then covering with plastic for a year. The plastic covering alone would do the job well enough. It sounds dangerous but in fact if he uses it a pretty dilution solution there probably isn't a problem. After all some people use salt, sodium bicarb. or sodium chlorate on their gardens though these are not strong alkalis like caustic soda. He's more likely to harm himself mixing this stuff! Spraying caustic soda solution could lead to problems though.

You don't say how your site is run but, if possible, someone from your committee should have a polite word with this chap to find out exactly what he intends to do and offer some guidance. In the longer term I suppose your site should have some policy on the use of chemicals. I know these policy sort of documents are a real pain in the butt (they seem to be everywhere these days) but at least it would let everyone know exactly what can and can't be done. More importantly it gives you the strength to take action against a plotholder if they step over the line. In all these sort of situations do keep a written record of who said what and when in case there is more trouble.

John
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Susie Sweetpea
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Re: Caustic soda

Postby Susie Sweetpea » Tue Mar 03, 2009 1:27 pm

Hi John and Alan

Many thanks for your advice re caustic soda. I will pass on your comments to our committee to discuss at their meeting tonight. Like John, I would have gone down the plastic (minus caustic soda) route.

Kind regards,

Susie
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Re: Caustic soda

Postby Tony Hague » Tue Mar 03, 2009 3:53 pm

Are you sure he hasn't got the wrong end of the stick, and really means sodium chlorate, which would be more conventional - though not necessarily the best of ideas.
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peter
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Re: Caustic soda

Postby peter » Tue Mar 03, 2009 7:48 pm

But if he does mean Sodium Chlorate then he is still a fool.
It's a path weedkiller of the persistent kind and it leaches.

But is this all third or fourth hand, "send three and fourpence, we're going to a dance" type stuff?
Or did you hear it straight from the person concerned?
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Susie Sweetpea
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Re: Caustic soda

Postby Susie Sweetpea » Wed Mar 04, 2009 10:34 am

Peter - I know what you mean, we had it second hand so went back to check with the person who heard it first hand and yes he does mean caustic soda!
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Re: Caustic soda

Postby Johnboy » Wed Mar 04, 2009 2:03 pm

Hi Elaine,
Caustic Soda could render the plot unusable for ever.
If you note in the Dow website. If spilt on soil the soil must be removed.
What you do with it is a little unclear.
I dread to think what the PH would be. Certainly off any PH testing kit.
This person must be prevented at all costs.
JB.
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joe1010us
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Re: Caustic soda

Postby joe1010us » Fri Jun 22, 2018 7:56 pm

I find this topic interesting. There are plenty of natural ways to kill weeds yet typical home owners still turn to poison. Caustic Soda is often used in water treatment to treat PH conditions. Small amounts are injected directly into drinking water. Its sounds like it may be safer for the environment than Round-up since some people drink caustic soda everyday. It would without a doubt kill weeds.
I chose to save a few bucks and be environmentally friendly and get down on my knees and just pull the unwanted pesky plants. Does that make a difference when I'm chugging gasoline to get to work and back everyday? Not much...I'm just the typical human cancer going along with the herd, typing away on my radio-active plastic know it all machine that will look great in a landfill someday. Maybe Ill just drop it on the ground in the middle of some shady section of New Jersey where trash cans don't exist and people are the purest form of scum. The city workers once a week will make sure my trash gets blown via leaf blower into the storm drain so they dont have to trip over it anymore. Then it will end up in the ocean like everything else. Ever wonder?... if a Volcano erupts 1,000 years from now underneath the worlds largest landfill what would happen? I can go on forever, so I'm getting a beer and working outside. You don't like me? Good. Stop wasting your time.
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