Gins
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Joined: Mon Jul 13, 2009 7:13 am
Location: Herts

Transparent brown leaves

Can anyone give advice about brown transparent blotches on the laeves of my roses? It started in one small area, and has now spread all over one large rose and onto another. We have recently installed a watering system, which waters at night - could this be the culprit?
the roses are planted on a bank facing south.
Thanks,
Gins

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Kisal
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Location: Oregon

Yes, I think the overhead watering might be contributing to the problem. It would help us a lot to see pictures of the damaged leaves. Instructions for posting pictures can be found at [url=https://www.helpfulgardener.com/forum/viewforum.php?f=23]Tips & Suggestions for New Members[/url]. :)
"Isn't it enough to see that a garden is beautiful without having to believe that there are fairies at the bottom of it too?" - Douglas Adams

stratfordtiger
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Joined: Mon Jul 13, 2009 9:52 pm
Location: Stratford upon Avon

Could be a potash shortage. Especially if the brown is around the edge. You should make sure you use a compound fertilizer to help alleviate it. Though hurry, you don't want to be feeding plants much after July as their metabolism is starting to slow down.


Good luck
Tom
Stratford upon Avon, UK

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Kisal
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Joined: Tue Jun 24, 2008 5:04 am
Location: Oregon

Without seeing the damaged leaves, it's hard to say. Leaf miners can create what I would call "transparent blotches" on leaves.
"Isn't it enough to see that a garden is beautiful without having to believe that there are fairies at the bottom of it too?" - Douglas Adams

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