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White powder on leaves
Floristasstarted grow question 2 years ago
White powder on leaves started occuring most likely of humid and hot weather, any way to tackle it before it got into buds? I still have 3 weeks to go till the end...
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Leaves. White powder
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GrowingGrannieanswered grow question 2 years ago
You've got yourself some powdery mildew... and this can spread very rapidly so get on it NOW.... The BEST way to kill this off is with Potassium Bicarbonate... but you'd probably have to order it online and wait for it to arrive... there are a number of concoctions you can make from things in your kitchen to combat this - and rather than get into all the various options, I'm just going to give you a link to a very thorough article that details any number of home remedies that will control/kill it. That link is: https://www.growingagreenerworld.com/controlling-or-eliminating-powdery-mildew/
And you really don't have time to dither about this... left untreated, powdery mildew can turn an entire field of crops white in 7-10 days...
GOOD LUCK!!!!!
123Growanswered grow question 2 years ago
Potassium bicarbonate is freely available at vitamin shop I believe
My tool was sodium bicarbonate and organic dish soap. I do that at week 3 of my outdoor grows. Never had any mildew issues.
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ernest_twwganswered grow question 2 years ago
Grab some Amazing Dr. Zymes and start hosing the plant down. Tops and bottoms of leaves, stalks, stems, branches, soil, everything.
Then, take Dr. Zymes and also hose down your grow area. Then, sanitize it after that, as well.
Powdery mildew is a pain and you don't want it coming back in future grows.
Good luck!
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Robertsanswered grow question 2 years ago
White mildew can be resolved with a mixture of milk and water sprayed on leaves. Would do it at start of night schedule. I am not sure of mixture amounts off hand.
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Ultravioletanswered grow question 2 years ago
The best way is to use ultraviolet light at 280nm, Solacure. Pretty pointless though unless you can control your humidity.
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