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Broad Bean Disease ?


 
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Funkygarden
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Joined: 19 Aug 2014
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PostPosted: Mon Nov 24, 2014 7:04 am    Post subject: Broad Bean Disease ? Reply with quote

Hi

My Broad beans leaves are blackening around the edges inside a polytunnel in two raised beds at one end of a polytunnel but not at the other end. (mainly in one bed though)

Any idea what it could be

I attached a picture

Thanks



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Broad bean leaf
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Good guy
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Joined: 11 Feb 2013
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Location: Donegal

PostPosted: Mon Nov 24, 2014 3:58 pm    Post subject: Reply with quote

Sounds like it might be a fungal disease. Are you ventilating the polytunnel properly? Some varieties of broad bean are hardy enough that you can sow them now in the open to overwinter. You might think of growing some of them.
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Funkygarden
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PostPosted: Mon Nov 24, 2014 4:38 pm    Post subject: Reply with quote

Yes thanks for the reply, the doors are opened regularly (about 5 days a week) and none of the other plants have that problem.

I wonder is it Ascochyta blight cause it doesn't look like chocolate spot
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Good guy
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PostPosted: Mon Nov 24, 2014 7:40 pm    Post subject: Reply with quote

I dunno then. I suppose it would do no harm to spray them with an anti fungal garlic emulsion. Perhaps some of the old hands here may have other suggestions.
Come on, you guys! Give of your expertise
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Funkygarden
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PostPosted: Mon Nov 24, 2014 8:18 pm    Post subject: Reply with quote

Thanks again for your assistance
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Greengage
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PostPosted: Mon Nov 24, 2014 9:16 pm    Post subject: Reply with quote

It could be just a deficency in some nutrient like Pottasium.
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Funkygarden
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PostPosted: Tue Nov 25, 2014 7:42 am    Post subject: Reply with quote

Thanks for your input. Perhaps but no other plants are affected. It is interesting alright and as I said that fungus above that I mentioned is the closest picture I can get to it on the internet. But some pictures of it don't correspond to mine either ??
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Greengage
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PostPosted: Tue Nov 25, 2014 8:04 am    Post subject: Reply with quote

if it is only at one end and if it is the end next to the door it colud be just wind burn they been in a tunnel.
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