Codling moth is a small brown and bronze-colored moth. The caterpillars of this moth cause severe damage to apples and other fruits, such as pears, quinces, and English walnuts. Originally a native of Europe, the codling moth now lives in all parts of the world.
In spring, the adult moths emerge from their cocoons under loose bark and trash. They lay their eggs on leaves and twigs. The larvae (caterpillars) bore into young apples. This usually causes the fruit to die and drop off. A second or, in some areas, even a third generation of larvae may bore into larger apples.
The chief method of controlling codling moths is by a series of four to seven sprayings with insecticide. Some growers use traps baited with a special pheromone (chemical substance) that attracts male moths. These traps help growers judge the best time to spray. Orchards and packing sheds should also be kept clean of all loose bark, fallen apples, and trash.
