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Thread: Milk/water spray to stop powdery mildew

  1. #1
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    Milk/water spray to stop powdery mildew

    In my last grow I had some problems with powdery mildew, but I didn't realize how serious it was until everything was totally screwed up.

    Since then I've read, seen photos, and learned what to look for. In searching for a product to kill PM, I found something on the internet saying that mixing milk with water does a good job, as milk is a natural fungicide, and even has some small nutrition value.

    So I've been making a 25% milk 75% water combination, and I keep a close eye out for any spots of PM, and I spray them down HARD when I see them. I'll even dip my fingers in a glass of milk/water and rub down leaves that have a spot of PM on them to help work it in and wipe out the PM.

    It also seems to kill spider mites pretty well, as I saw a few on a couple plants, sprayed them, and they haven't come back in over a week now.

    Anyone else ever use milk/water for this?

    Since milk is a natural thing, I wonder if it is ok for it to be sprayed on leaves and buds during flowering. Any idea?

  2. #2
    420 Member Bobzilla's Avatar
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    Re: Milk/water spray to stop powdery mildew

    Spraying late into flower probably wouldn't hurt but may affect the flavor of your buds, i.e. sour milk. I had issues with PM on my last grow. I found a product called Organocide at a local shop. The label claimed you could spray right up till harvest. I saw no harm in this, because if i wouldn't have sprayed i would have most likely had moldy buds. So i applied up until about 1 week before harvest and have noticed no foul taste whatsoever. Organocide smells like ass, but did not change the flavor/aroma of my finished product.

    Long story short, i have never used milk/water but if it's working for you, i say keep it up.

  3. #3
    420
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    Re: Milk/water spray to stop powdery mildew

    Try our sponsor's product for Powder Mold.
    SNS 244 FUNGICIDE

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    Re: Milk/water spray to stop powdery mildew

    Can it be safely used later in the flowering cycle?

  5. #5
    420 Member Sensibowl's Avatar
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    Re: Milk/water spray to stop powdery mildew

    Quote Originally Posted by RandyL View Post
    In my last grow I had some problems with powdery mildew, but I didn't realize how serious it was until everything was totally screwed up.

    Since then I've read, seen photos, and learned what to look for. In searching for a product to kill PM, I found something on the internet saying that mixing milk with water does a good job, as milk is a natural fungicide, and even has some small nutrition value.

    So I've been making a 25% milk 75% water combination, and I keep a close eye out for any spots of PM, and I spray them down HARD when I see them. I'll even dip my fingers in a glass of milk/water and rub down leaves that have a spot of PM on them to help work it in and wipe out the PM.

    It also seems to kill spider mites pretty well, as I saw a few on a couple plants, sprayed them, and they haven't come back in over a week now.

    Anyone else ever use milk/water for this?

    Since milk is a natural thing, I wonder if it is ok for it to be sprayed on leaves and buds during flowering. Any idea?
    I think it's a better idea to use something like neem oil.

    It's natural and has less of a chance to affect the taste. Milk just doesn't sound like a good idea.


    I find that the better the nutrients I use, the fewer times I have problems. Advanced Nutrients works well for me.

    But I have had to use neem oil in the past and it works well with the nutes.
    Last edited by Be Irie; 12-19-2010 at 01:48 PM. Reason: removed link

  6. #6
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    Re: Milk/water spray to stop powdery mildew

    Colloidal silver and/or H2O2 should work. They should be a part of every indoor growers kit.
    Foliar Feeding http://www.420magazine.com/forums/gr...ator-leds.html

    Turbo Charge Your Grow with High Pressure Aero to http://www.420magazine.com/forums/jo...eroponics.html


    Smoking pot isn't addictive, growing it is.

  7. #7
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    Re: Milk/water spray to stop powdery mildew

    Quote Originally Posted by PetFlora View Post
    Colloidal silver and/or H2O2 should work. They should be a part of every indoor growers kit.
    Why would you use colloidal silver in a grow room for anything except to coerce balls from a female?

    H2O2 is water with unstable extra oxygen. High enough O2 to kill fungus may kill cannabis, or blow up your tent, ect.
    Extra moisture is not likely to discourage powdery mildew.

    Creating a dry, airy enviroment is best prevention.
    If you've allowed PM to grow, strong measures are needed immediately to save your crop. SNS 244 FUNGICIDE

  8. #8
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    Re: Milk/water spray to stop powdery mildew

    To clean and disinfect
    Foliar Feeding http://www.420magazine.com/forums/gr...ator-leds.html

    Turbo Charge Your Grow with High Pressure Aero to http://www.420magazine.com/forums/jo...eroponics.html


    Smoking pot isn't addictive, growing it is.

  9. #9
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    Re: Milk/water spray to stop powdery mildew

    I've been told you should not spray the buds with ANYTHING past the 3rd or 4th week of flowering. I wonder how this applies to the milk/water spray, since the people who said no spraying after week 3/4 never seemed to know about the milk/water combination. They never mentioned it, anyhow. Anyone know?

    I've been using the milk / water spray on PM and to kill mites. I check the plants several times a day, and if I see ANY of those little sunsabitches or their webs, I spray the hell out of the plants, the upper leaves of the plants on both the top and bottom, and other plants too, just to be sure. I'll empty a 32 ounce spray bottle in about 10 minutes!

    PM hasn't been much problem lately, but here in SoCal we've had 5 straight days of rain with 2 more to go! So I'm keeping an eye on things!

    I guess if I'm going to do a neem oil spray I better do it this week.

  10. #10
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    Re: Milk/water spray to stop powdery mildew

    I've used a milk/water spray for powdery mildew for a long timne, it works. Raw milk is best if you can get it, I use our goat milk.