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Cucumber plant problem


 
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Yorky
Rank attained: Silver Birch Tree
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Joined: 17 Apr 2007
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PostPosted: Fri Aug 20, 2010 10:39 am    Post subject: Cucumber plant problem Reply with quote

I transplanted some cucumber plants growing in pots to the greenhouse border recently but the leaves have started to turn yellow and brown.

The soil had been manured last Autumn and more manure was incorporated when transplanting.

They've been well watered (every other day), fed weekly and given a seaweed tonic to no avail.

I've attached some photographs.

Thanks in advance for any diagnosis and / or advice



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michael brenock
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PostPosted: Fri Aug 20, 2010 11:06 am    Post subject: Reply with quote

it looks like severe magnesium deficiency which can be cured with an application of Epsom salts. One teaspoonful in a gallon of water and the solution diluted to one in 50-100. Apply once a week to the roots.
if it is not magnesium deficiency then it may be mosaic virus disease for which there is no cure.
michael brenock horticultural advisor (retired)
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Yorky
Rank attained: Silver Birch Tree
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PostPosted: Fri Aug 20, 2010 11:24 am    Post subject: Reply with quote

michael brenock wrote:
it looks like severe magnesium deficiency which can be cured with an application of Epsom salts. One teaspoonful in a gallon of water and the solution diluted to one in 50-100. Apply once a week to the roots.
if it is not magnesium deficiency then it may be mosaic virus disease for which there is no cure.
michael brenock horticultural advisor (retired)


Thank you Mr Brenock. So should the actual solution of 1tsp Epsom salts: 1 gallon water be diluted down to 1: 50 or 100? If so, what quantity should be applied weekly?

Thanks again
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michael brenock
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PostPosted: Fri Aug 20, 2010 1:11 pm    Post subject: Reply with quote

about one teaspoonful of the original stock solution. Weak solutions are more easily and quickly absorbed by plants.
michael brenock horticulturla advisor (retired)
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Yorky
Rank attained: Silver Birch Tree
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PostPosted: Fri Aug 20, 2010 1:30 pm    Post subject: Reply with quote

michael brenock wrote:
about one teaspoonful of the original stock solution. Weak solutions are more easily and quickly absorbed by plants.
michael brenock horticulturla advisor (retired)


Apologies but could you explain this please.

A poster on another forum has suggested that there's an infestation of red spider mite and these do appear to be visible on the first two photos. Can you suggest an organic method of eradication?
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