Emerald Harvest - Root Wizard

A Rep gave me a bottle of this for my Root zone its a Root builder full of beneficial bacteria,

I get it bacteria and fungi work together with the plant.

However my question is , why would you foliar spray this on the leaves? The reason I ask is in the booklet the gentleman gave me it says "tips and Tricks" Foliar spray on upper leaves. Why would we want bacteria on our leaves other than maybe PM? and would the bacteria block photosynthesis?

It creates a biofilm and is a good defence aganst disease

Fyi i got a free pro starter kit of emerald harvest so i said i would try it. Root wizard is one i would cut and replace with another companies microbes. Early veg they want 15 mil per gal. Holey crap at 70 bucks a bottle no thank you lol. Love microbes but not at that price. Doubt there as good as mammoth p or photosynthesis pluse anyway

The mammoth p is 80 dollars for less than half though. The guy just gave it to me unopened, it will last me a long time. Thanks for the input.

Mammoth p uses 2 mil per gal in early veg. Free is good thats why im useing it now. Just letting you know not to fall in love with it. Half an oz a gal is insane. I dont care if a product is expensive if it works and it lasts