Grandma Enggy's F-1 , Foliar Spray. Do you use it?

Has anyone here ever used Grandma Enggy's F-1 foliar spray during flowering?

I began using it on the bud nodes about a week into flowering, noticing some white residue buildup that's easily wiped off.

Any opinions on this?

-d'Artagnan

dont see the point as stomata slam shut when too wet. so what little is absorbed probably just clogs up the system if white residue is left on the leaf. I would follow up with some water though to remove the residue if you continue/like to use the product. good luck