I am a Iraq combat vet (USMC) and cannabis has completely helped me as a medicine. Funny how prescription drugs are readily available but cannabis is not allowed....a little contradictory.
Aren't we talking about power mildew...and not powder mold. Anyway, I have had great success with a sulphur burner. Mildew Cure worked pretty good as well but not as effective as the sulphur burner.