Quote:
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Originally Posted by
Its ok on the leaves,Wash the plums tho. Depends on whether there is a
fungus on your apple tree. Copper sulphate is an old time fungicide,
still fairly effective on some fungi.
gasdoctor wrote:
Hi,
Ive just sprayed my plum and cherry with murphys traditional copper
fungicide, using the dose recommended. (My plum had canker earlier in
the season)
Its left a blue-ish powder on the leaves (copper), I havent used this
before, so is this OK or should I wash it off.
Also is it worth giving my apple a spray?
Cheers
Ed
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gasdoctor
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Thanks,
One other question: Copper is a fungicide but does it have anti-bacterial actions as I was under the impression that canker can be cuased by bacteria? Though the RHS site recommends copper for canker on fruit trees.
Just checking Im applying a correct therapy.
Ed