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Wed, Jun 27, 12 at 22:29
| Can anyone tell me what flower this is? Can you also tell me what is wrong with it and what I can do to help it? Thanks so much!
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Follow-Up Postings:
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| Powdery Mildew on Phlox paniculata. |
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- Posted by theplantwizard none (My Page) on Wed, Jun 27, 12 at 23:32
| You may be able to beat it with a fungicide. The easiest thing is to prevent it though, by getting rid of the aphids/whitefly that encourage its growth. |
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| Powdery Mildew has nothing to do with aphids or whiteflies. It is cause by a fungus that prefers certain weather to flourish. Remy |
Here is a link that might be useful: Powdery Mildew on Phlox page
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| Sooty Mold is the fungus associated with leafhopper/Scale/aphids/whitefly. |
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| There are more resistant forms of Phlox paniculata, in particular a white flowered one called David if you want to replace this. If not powdery mildew has yet to kill any of my phlox, though it sure is ugly if the plant is very visible. You can reduce its likelihood next year with good culture, though not necessarily prevent it. This fall, remove all the stems and leaves after the first frost and throw it out - don't compost it. Put new mulch under the plant to prevent the spores from splashing onto new growth next spring. As it grows next year, cut out enough of the stems so that the foliage isn't crowded and gets good air flow. Water with soaker hoses if needed, don't wet the foliage. If you want to use a fungicide (I don't like to as they may cause problems for various critters or groundwater) you really need to use it before it gets this bad - using it now won't really help. Start using it at the very first sign of PM. |
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- Posted by seedmoney 8A (seedmoney@embarqmail.com) on Sat, Jun 30, 12 at 15:25
| Some folks have reported success using a 50/50 solution of milk and water, applied every 5 days. |
Here is a link that might be useful: controlling powdery mildew with milk
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