White mildew, can I spray it off with hose?

Discussion in 'Sick Plants and Problems' started by DotComRich, Aug 19, 2019.

  1. Just discovered my out door thats 2 weeks into flower has white mildew on at least 60% of the fan leaves. I plan to attack it with a baking soda/dish soap spray but I am wondering if I can give it a medium blast from the hose to try to spray off what I can before applying the homemade spray?
  2. Yeah, but do you have treated water or well water? That’s important if it’s treated I wouldn’t spray that on the leaves. It’ll probably do more harm than good.

    Probably better to leave it there so the spores don’t spread anyways
  3. Most of us outside growers use Green Cure once a week to keep the powdery mildew under control.

    Green Cure = Potassium Bicarbonate
    Baking soda = Sodium bicarbonate.

    Potassium bicarb has been used on grapes as a organic PM control for years.
    Local hydro shop should have Cure.

    You should be spraying BT every week as well to keep the caterpillars dealt with.

    Bacillus Thuringiensis


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