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  #1  
Old June 12th, 2007, 08:36 AM
Kenna Kenna is offline
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Holly Bush Disease

My Holly Bush leaves are black on the top and have white powder on the bottom. What can I do to correct this problem. The new shoots were o.k. My other holly bushes are fine.
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Old June 12th, 2007, 11:40 AM
Ron B Ron B is offline
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Re: Holly Bush Disease

Scale? The black would be sooty mold growing on their secretions dripping from above.
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Old June 12th, 2007, 04:07 PM
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martinpribble martinpribble is offline
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Re: Holly Bush Disease

yes I'd say scale. We have a large holly out back which suffers badly from sooty mould brought on by scale. The problem here is 3-fold:

1. Scale feeds on the sap of the plant.
2. Sooty mould grows on the excreta of the scale.
3. Ants feed on the mould and the excreta of the scale, and in return protect the scale from predators.

Look here for solution: Sooty Mould Management
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Old June 13th, 2007, 03:21 AM
levilyla levilyla is offline
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Re: Holly Bush Disease

Try spraying with Horticultural oil.
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  #5  
Old June 16th, 2007, 12:47 PM
Kenna Kenna is offline
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Re: Holly Bush Disease

Thanks for the information. I will try it.
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Old June 16th, 2007, 12:48 PM
Kenna Kenna is offline
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Re: Holly Bush Disease

Thanks for the info.
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