Peach Twig Borer (PTB) causes wormy fruit in peaches, nectarines and apricots in Utah. If they are a problem in your orchard, it is critical to maintain some sort of control program from the projected beginning spray date until the end of the spray period. Backyard home orchards can find various control options by clicking on the Home Orchard Pest Management Guide link found under the FRUIT TREE PRODUCTION link. It is important for homeowners to read and follow the product label to keep your fruit worm free from this pest.