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White Powdery Substance on Roses



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jbaby7162000

georgia
Posts: 37
Posted: Sun Jun 11, 2006 10:13 pm   Post subject: problem with a rose bush


how can i get rid of white powdery substands the new growth that had buds has wilted and died.how can i get rid of the mildew without going out and buying something expensive,,,thanks


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joanne
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Pinkiered

Lawton, Ok
Posts: 900
Posted: Sun Jun 11, 2006 10:24 pm   Post subject:


You will have to hand pick them off. Wear gloves. I use a pair of sharp scissors just for the leaves. But if it has Powdery Mildew, it has to come off be it leaves, buds or flowers. It will just keep spreading.

I found this the other day...

One of the easiest ways to control powdery mildew is to give your roses a thorough wash at least two mornings a week. A morning bath raises the humidity so spores can't mature. Free water left on the plants also discourages spore maturation. Plants must be dry before nightfall so residual moisture does not provide favorable conditions for spore germination.


Read my blog on Troubleshooting roses for more details and recipes for organic sprays (Im adding them in a min).


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I do not have a green thumb
My plants just have the will to live.
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jbaby7162000

georgia
Posts: 37
Posted: Mon Jun 12, 2006 12:39 pm   Post subject: roses


ok i sprayed the roses this morning,with the vinegar and water.thanks for your tips.


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joanne
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Pinkiered

Lawton, Ok
Posts: 900
Posted: Mon Jun 12, 2006 3:38 pm   Post subject:


You are very welcome.


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I do not have a green thumb
My plants just have the will to live.
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Profile | PM | Website | My Garden | My Blog



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