Quote:
Originally Posted by Swanny
Need some advice please.
I bought some h2o2 (hydrogenperoxide) today, it's 9% not 8% as they said.
Do I water it down before spraying it on my plants or just use it as it is???
Thx 
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I would double it's volume with water(4%) before I used it directly on plants then maybe work up to higher strengths later when plants have had a few doses.. I wouldn't take a chance on shocking them... although the article states that 8% is what he used... I would also use "food grade" H202..
I purchased mine here
http://www.dfwx.com/h2o2.htm