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Beginner Gardening Questions: Jostaberry (Ribes x culverwellii) dis-ease

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Forum: Beginner Gardening QuestionsReplies: 3, Views: 42
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jpofsunya
Staten Island, NY
(Zone 6b)

September 17, 2012
8:56 AM

Post #9277732

Hello,
I am wondering if someone can explain what the substance is on the leaves of this jostaberry seedling? I am assuming it is not desirable.

Thanks for any help!

Thumbnail by jpofsunya   Thumbnail by jpofsunya   Thumbnail by jpofsunya
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WeeNel
Ayrshire Scotland
United Kingdom

September 17, 2012
12:03 PM

Post #9277883

Not really sure from pictures, is the white matter powdery, is so, it would be more likely grey mould, if you cant rub it off gently, it could be birds droppings, or maybe it is insect excrement, I just cant make it out clearly and sorry about that,
How and when are you watering the seedlings, I would make sure you dont let water get onto the foliage as in your heat this can start mould, if that is what the plants have, make sure they are well watered, start feeding them and keep a close eye out for this spreading if it's mould.
Wish could help a bit more but maybe someone else can come in and help further.
Good luck, WeeNel.
jpofsunya
Staten Island, NY
(Zone 6b)

January 1, 2013
4:54 PM

Post #9372652

This is what I've been able to find information-wise for this type of 'leaf-netting' on jostaberry
http://www.ars-grin.gov/cor/ribes/ribsymp/leaf6.html
ayesha_irshad

January 2, 2013
3:19 AM

Post #9372926

i am unable top judge anything by watching these images... sorry!!

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