Do you know the name of the pest? It might help in figuring out to deal with it. Here's a recipe I used to use for attracting pests. Not sure how it will work for you... It's for Japanese beetles, but I've used the same thing for other bugs.
Also, we found disease-resistant trees that don't need spraying from Miller's Nursery at
www.millernurseries.com. The varities are called Freedom, Liberty, MacFree and Jonafree. Otherwise, it seems too hard to get a good organic crop.
*To make a Japanese beetle trap you'll need a gallon-size plastic jug, 1 quart of water, cup of sugar, 1 cup of mashed ripe fruit, 1 teaspoon of active dry yeast, a utility knife, a long-handled strainer or large slotted spoon, and a piece of rope or twine for hanging.
Procedure
Begin by rinsing out the plastic jug, and carefully cut a large opening in the top, but leave the handle intact. Next, combine the water, sugar, and mashed fruit and yeast, and mix them together thoroughly. Hang the trap from the limb of a tree about three feet off the ground, or hang it from a hook intended for a hanging flower basket. Before long you'll notice Japanese beetles floating in the liquid, but they won't be able to escape and will eventually drown.