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Why is there white powder on the leaves of my phlox plant?


By Raymi

Northumberland, United Kingdom Gb

I planted the phlox a few weeks ago in a west facing border. I live in Northumberland on the coast.I first noticed the white powder when I was planting it and has steadily increased



Sounds like powdery mildew - you need a fungicide spray to treat it with.

15 Aug, 2009


Powdery mildew is mostly caused by the plants roots being too dry.
It would need watering daily as a newly planted item in the summer months.

If there are a lot of plants close together there isn't a lot of air circulating around them and this can double the trouble.

15 Aug, 2009

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