What kills white powdery mildew?

bossman88188

Well-Known Member
that far into flower im sorry to hear that . have had that problem almost exact. and imo there is only a couple things you can do.the best option is a sulphur burner.
the next option is a large dehumidyfier and drop the hunidity as low as yoy can get it.
thi dry humidity will also increase trichs.
 

Erysichthon

Well-Known Member
i have this months High Times, and theres a question the Jorge's RX section about powdery mildew. Q. "i have your book, marijuana horticulture (aka "the bible"). i also have powdery mildew. im an organic garnder. help!"

A. "you know the unpleasent news from reading Marijuana Horticulture. once powdery mildew sets in, it continues to grow untill it destroys the plant..." and he goes on about it becoming more of a problem here of late and says prevention is key. once you see the first indication of infection,small spots on top leaves, the disease has been inside the plant for a week or more. he also goes on to say its occasionally fatal indoors, and is at its worse when roots dry out and foliage is moist. also avoid excess nitrogen. copper and sulfer-lime sprays are a good prophylactic. for bio controll, apply Serenade or spray with a mixture of baking soda and water, the baking soda dries out on the leaf and raises the surface ph to 7 and powdery mildew can no grow. bordeaux sprays also help keep the mold in check.

i can take no credit for this info. its straight from the man himself...
 

strictly seedleSs

Well-Known Member
I have "the bible" and it says controlling humidity is the way to helpn not solve, the problem. So i will take a look into "serenade". Thanks.
 

larrytwo

Active Member
Nothing but a sulfur buner kills that shit.Only thing that put it in check was water at a ph of 9 to 10,but spray early in the light cycle.
 
I have used Serenade and it works pretty good, supposedly you can use it all the way to the end if necessary...i stopped using it when i started flushing and it does work
 

weedyoo

Well-Known Member
i have just killed powder mold in bud room

i used 1 part low fat milk 3 parts water a few drops of dish soap.

i sprayed lights on fans off

i would recomend spraying your plants one by one and get them all one left over spore and your back where you started.
 
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