I bought Jerry Baker's book, "Supermarket Super Gardens". It has the following recipe to aid pollination. Put 2 cups of water in a pan, add 1/2 cup sugar & boil,stirring until sugar is completely dissolved. Let mixture cool, dilute it with 1 gallon of water. Pour solution into a handheld sprayer bottle. Then spritz your blooming plants. Soon the bees will come. Hope it works for you.