ShLUbY
Well-Known Member
yeah i've been using neem and karanja, coupled with sodium bicarbonate (baking soda). the alkaloid deters the fungus from growing but it's only effective when applied with an oil to keep it on the leaf. it works really good... but i need to CURE the PM, i don't want to have to keep deterring it. don't know if there is a cure!I've never used geranium oil but I would suggest buying the oil pure and making your own at the percent weight they did. maybe higher or lower depending. I know citrus oil, rosemary oil, peppermint oil, neem oil, etc. and compost tea foliars can get powedery mildew but try the geranium if you haven't.
they say that potassium bicarbonate (a food grade product) is more effective than the NaHCO3. but it's like 39% K or something like that... i'm worried about burning the leaves with it.... whatchu think?
i know that bottle is mostly water, and like you mentioned i'd source the oil before buying that bottle. was just using it as a reference if anyone had used it before.
I'm also going to get either a germicidal bulb (which emits UVA or UVC, and ozone) to run all the time (when lights are on), or i'm just gonna get an ozone generator to run for a few minutes with fans and exhaust shut off before lights out (or right at lights out).