I don't have a foliar spray recipe for feeding, but I have a good formula I like for fighting fungus and bacteria. I don't use chemicals on my farm, but the disease pressure is very high here in our very rainy climate. I use a simple spray "recipe" which does help in fighting fungus on my plants and fruit trees. Mix one cup of white sugar and one cup of 3% hydrogen peroxide with one gallon of water. The fungus and bacteria don't like the peroxide at all, and as a bonus the sugar somehow makes leaves less appetizing to the bugs. I do add EM to the recipe, and it probably adds a punch to the formula as well. The only problem with spraying this on the trees...the rain washes it off. BTW, I credit this formula to Ed Bernhart, our longtime resident organic gardening expert here, who "wrote the book" on tropical organic growing in Costa Rica.