h2o2 will kill all of your bennies. Mycorrhizae is something you want to keep around.
(cut and paste job)
Ecto- and Endomycorrhizal Root Booster Mycorrhizae are beneficial fungi which create symbiotic relationships with plants, creating a stronger and healthier plant. Ideally, you want to mix this powder inoculant with your soil at the root zone before transplanting to colonize the beneficial fungi before the harmful microbes can become established. Application rates: Vegetables and flowers, sprinkle 1/2 teaspoon on transplant roots; trees/vines, 2 teaspoons applied directly to plant roots; existing plants, probe into root zone with a dowel, apply product and close hole. Product contains mycorrhizal fungi, yucca extract, and humates.