Codling moths are worldwide pests that damage the fruits of apple, pear and quince during the insect's worm stage. Codling moths can infest every apple in an orchard if left unchecked. The worms burrow through the fruit, leaving brown frass and tunnels. The resulting fruit is often unsuitable for eating. Codling moth worms hatch out of eggs which are laid on the fruit by female moths. The moths emerge 3 to 5 times a year (depending on climate) starting soon after bud break. Controlling the moths during these key flight times, before the eggs are laid, can effectively prevent worm damage to fruit. The Codling Moth Trap pinpoints these flight times by capturing the male moths which fly at the same time as the female moths. Apply appropriate controls at these peak times.