These people seemed to be well informed about Hydrogen Peroxide, and they adviocate using it more dilute than many other people do.
http://www.using-hydrogen-pero...
To water or mist plants, to soak seeds, or to add to water used to wash sprouts: - - -
0.1% H2O2
1 ml of 3% peroxide diluted with 1 ounce of water
1.5 tsp 3% peroxide diluted with 1 cup of water
1 tablespoon 3% peroxide diluted with 1 pint of water
1/2 cup 3% peroxide diluted with 1 gallon of water
To Spray on sick or fungusy plants: dbl-strength - - - - -
0.2% H2O2
2 tablespoons of 3% peroxide diluted with 1 pint of water
1/4 cup of 3% peroxide diluted with 1 quart of water
They are also so kind as to point out that there are TWO kinds of H2O2 for sale: normal 3% peroxide and ten-times-as-strong 35% Food Grade Peroxide!
They say:
"
10% hydrogen peroxide is recommended as a weed killer
-- in other words it will kill your plants at that concentration.... "
I also learned from them: hair-bleach or cosmetic peroxide uses a different labelling system:
V10 ~ 3%
V20 ~ 6%
V30 ~ 9 %
V40 ~ 12%
