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H202 mix for water for powdery mildew!

iboga

Active member
I have powdery mildew! I have a bottle of h202 10%
Can somebody tell me the correct ratio to mix this water to safely spray my plants!
The bottle says 250ml 10% H202.
How many ml should i add per litre? To spray plants!
 

PetFlora

Well-known member
ICMag Donor
Veteran
When using 35% food grade h2o2 the ratio is 1:11, so divide by ~ 3

Google has more answers than you would imagine
 
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