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  Question about raspberry bush

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momoffive
Joined: 8/29/2009
Location: Wisconsin
Posts: 13
Posted: Sep/11/2009 4:47 PM PST

I'm hoping someone might be able to help me. We planted a raspberry bush earlier this year and it's growing just fine, but recently I've noticed quite a bit of white, powdery stuff on the top and undersides of the leaves. Does anyone know what this is?

Barb
momoffive
Joined: 8/29/2009
Location: Wisconsin
Posts: 13
Posted: Sep/15/2009 6:36 AM PST

Here are pics of it.

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KeyWee blog photos
Joined: 11/29/2006
Location: West Kentucky
Posts: 1803
Posted: Sep/15/2009 7:47 AM PST

It's powdery mildew and it's a fungus. It won't kill the plant but it doesn't do it any favors either. You can spray with fungicide, but here's something I heard on a gardening show several years back. Mix one part whole milk (not 2%) with 9 parts water in a spray bottle and spray as needed. Hope this helps. I just planted blueberry bushes this year too, but no powdery stuff so far. I do get it on my zinnias and willow trees sometimes.
momoffive
Joined: 8/29/2009
Location: Wisconsin
Posts: 13
Posted: Sep/15/2009 8:44 AM PST

Thank you very much!
told2b blog photos
Joined: 9/12/2006
Location: Northern, NJ
Posts: 9414
Posted: Sep/15/2009 12:28 PM PST

http://plant-disease.ippc.orst.edu/disease.cfm?Rec ordID=951

Take out any spaces that GardenGuides deem necessary in the above URL.
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