2 lbs. of 8-2-12 or 13-3-13 Palm Special fertilizer every 90 days to palms or use 1 lb. of 0-0-22 every 90 days along with drenching Elemax 0-28-26 Phosphite, Hydrahume, and Subdue & T-Methyl at 7 gallons per Palm. Some of the coconuts had black sooty mold on the trunks. This is the result of mealybug insect feedi