Cheshunt Compound

[Judith in England]

Is there an easily obtainable alternative please?

[David]

On 23/03/2017 16:26, Judith in England wrote:
>
> Is there an easily obtainable alternative please?
>

Have you thought of googling "cheshunt compound alternative"

[Judith in England]

Thank you for your contribution: it is much appreciated.

I would rather ask here: and then read the excellent experience of others who
are willing to share.



PS Are you from the abacus-nurseries who I have been told are pure shite?

You may fuck off now.

[Judith]

On Thu, 23 Mar 2017 19:37:18 +0000, Chris Hogg <m...@privacy.net> wrote:

>On Thu, 23 Mar 2017 16:26:35 +0000, Judith in England
><jmsmi...@hotmail.co.uk> wrote:
>
>>
>>Is there an easily obtainable alternative please?
>

>It is/was a copper-based fungicide. Cheshunt is a mixture of copper
>sulphate and ammonium carbonate (smelling salts). Bordeaux mixture is
>similar, but uses hydrated lime in place of the ammonium carbonate.
>Bordeaux mixture used to be available, but that has also now been
>withdrawn. There's also a Burgundy mixture. These last two were used
>extensively for controlling fungus diseases on vines in the
>wine-growing regions of France, hence the names, but I think the
>continued use over many decades was causing a copper build-up in the
>soil, so they were banned. Whether the regulations will relax now
>we're leaving the EU, who knows?
>
>Another one is copper oxychloride. Bayer used to do it, but I can't
>find it now. It too seems to have been withdrawn, although there's
>this supplier, on Amazon http://tinyurl.com/lrdmlhm . 'Buy now while
>stocks last' as they say.
>
>Alternatively, make your own Cheshunt compound:
>
>Weigh 60 grams of Copper Sulphate & 330 grams of Ammonium Carbonate.
>Powder together and mix well. The dry mixture should be stored in an
>airtight container for a day or so before use, and can be stored that
>way almost indefinitely. Dissolve 25g of this mixture in hot water and
>make up to 8 litres with cold water.
>
>Copper sulphate on e-bay http://tinyurl.com/mbs6b4t
>Ammonium carbonate http://tinyurl.com/ms4b2zq
>
>Ammonium carbonate was what was used in 'smelling salts', so will
>knock your head off if you get your nose too close to it!
>
>Bordeaux mixture can also be made http://tinyurl.com/kkbpqfq and in
>particular: "For spraying in small amounts, prepare as above but only
>mix 1 gallon of water, 3 1/3 tablespoons of copper sulfate and 10
>tablespoons of hydrated lime. Agitate the mixture thoroughly before
>you spray."
>
>Note that a lot of so-called 'lime' sold in garden centres isn't
>traditional lime, but powdered limestone. They've ducked out of
>selling hydrated lime, I presume for H&S reasons. Proper hydrated lime
>can be obtained at builders' merchants, but probably only in amounts
>much greater than you need, unless you can use the surplus elsewhere,
>in the garden or on the allotment for example. It may even be that
>your local allotment club/society have a stock and that you could
>buy/have a small amount.
>
>Failing all that, I use Dithane 945, but I get the impression even
>this has been or is about to be withdrawn. Fortunately I have quite a
>lot! But it seems to be still available on e-bay in various amounts
>http://tinyurl.com/laxx33a


That's excellent: many thanks for sharing your experience and knowledge:
appreciated.

(Just what URG is for)