How to Deal with Mildew Leaf Disease



Mildew leaf disease attacks plants throughout the year but it is most prevalent during dry months. It is caused by dryness at the plant's roots. Left unchecked, it can spread through the plant weakening it and can ruin its appearance.

Steps

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    Identify the disease. Mildew appears as grey powdery patches on top of the surface of the leaf.
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    Use cultural control. You can brush mildew off with your hands but this won't rid your plant of the disease. If you spot a leaf blighted with mildew, prune back the shoot to a healthy leaf, or even to the ground if it needs it. Make sure you check the entire plant thoroughly, pruning as you go.
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    Use chemical controls. If removing all the diseased leaves will leave your plant completely bare, consider using a pesticide/fungicide spray. This won't cure the disease but it will stop it spreading. Always follow the instructions on the spray container carefully.
    • Hold the bottle about 30 centimeter (11.8 in) away from the plant and spray enough to coat the leaf but not enough to cause any drips.
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    • Treat the plant either early, or late in the day, so you don't spray pollen-spreading insects like bees.
    • Wait 14 days and then repeat.
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    Practise prevention. To stop your plants from getting mildew, keep them well watered and fed, particularly at the beginning of the growing season.

Tips

  • If you aren't sure which spray is the best choice for your needs, ask a specialist at your local garden centre for assistance.

Things You'll Need

  • Secateurs
  • Good combination pesticide and fungicide spray (possibly) - this will be available from your garden centres

Sources and Citations

  • VideoJug A video demonstration of article. Original source of article; shared with permission & appreciation.

Article Info

Categories: Garden Pests and Weeds