Foliars I use - Lavender Oil, Rosemary Oil, OHN [my own recipe.], AACT Diluted. and Coconut Water / Aloe Diluted
I rotate them around and end up spraying 4-8 times a week. The plants seem to love it.
If you're interested in any I'll happily give you the recipe. I do not use KNF's exact formula...