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Powdery Mildew makes an summer appearance

The last couple of weeks having been dry, i've started to see the first signs of Powdery Mildew.  This is a silvery fungus that effects some plants and is exacerbated by dry roots or overhead watering, - purple berberis, Lonicera (Honeysuckle) Phlox and Asters are all susceptible to this, - to ensure that the mildew is minimised in future years, prune off badly affected stems to ensure good healthy regrowth, collect up and dispose of all leaf drop, - water around the base/ rootball, and if you are using chemicals, spray a suitable fungicide or sulphur to prevent a bad case.  In the case of Phlox and Aster, - I try and put them at the back of a border, so that you can enjoy their flowers without noticing the mildewy stems.


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