powder mildew

Discussion in 'Sick Plants and Problems' started by wozerishere, Aug 29, 2007.

  1. what is the best way to remove powder mildew with out the chemicals as i am 2 weeks away from harvest or what will happen if it is left will it spread and rot. can it be slowed down ect
  2. Check this out.

    Flower Pharm w/pure Cinnamon oil

    2 weeks out is close. Lowered temps can slow growth.

    Yes it can rtin bud that mature, so read up and save your harvest. I hate mildew. mold and fugus to:)

    gl alex
  3. What about neem oil, especially the 70% version that contains the emulsifier so you just add water? My recollection from the board is that it can be used up til harvest but tends to kill powder mildew within two weeks?

  4. How's it going?

    alex efans
  5. i am trying a homemade recipe as i am late in flowering and dont like the prices at the hydro shops lol it is a mix 1 tbsp bakin soda 2 1/2 vegtable oil 1/2 tbsp dish soap and 1 galon of water to be applied to all aeras of affected foaliage every 2-3 days until infection is controled and the just mist with high ph water
  6. I agree the shops are high.

    gl w/ the remedy.

  7. thanks mate you seem to be the only person willin to help lol
  8. Just trying to keep karma on my side.

    Start your flush also and no more foliar feeding. You are two weeks from harvest?

    I read more than I post. Believe it or not...lol

  9. yeh thanks for your advise its good to think someone is using your knowledge and will one day b smokin it thanks
  10. here's some info that may help you. in the future, a sulphur burner will really help for pm. you shouldn't use a burner in flower or your buds will take on the odor/flavor. remember, foliar spraying in flower can cause other problems, mold.

    Powdery and Downy Mildews
    by R.K. Horst

    ...However, environmentally friendly sprays may soon beavailable. My present work at Cornell University has been to investigate the effects of biocompatible chemicals such as bicarbonates (common baking soda) and horticultural oils on controlling mildews. So far we've found that sodium or potassium bicarbonate in combination with Safer Sunspray effectively controls powdery mildew on roses, cucurbits, herbs, zinnias and chrysanthemums. The most effective treatment has been a weekly spray of a 0.5% aqueous solution (three teaspoons per gallon of water) of either sodium or potassium bicarbonate (we used the familiar Arm and Hammer brand baking soda), combined with a 0.5% solution of Safer Sunspray horticultural oil (2.5 tablespoons per gallon of water). Registration is underway to approve bicarbonates for the control of mildews, but as yet they are not labeled for that use. However, they promise to have an exciting impact on control of these diseases in the future.

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