Foliar fertilizer, 2 qts/acre is $18 per acre. Contains a surfactant that dries out soft bodied insects and fungus on the leaf, killing them. If you don't want this function, then please choose MycorrPlus-OF.
For certified organic use, use MycorrPlus-O-F foliar in place of F. Three qts./acre is $23.10 an acre. Also used for trees and for those who do not want their soft-bodied insects (like ladybug larvae) killed.