Pest description and crop damage Adults are somewhat smaller than a house fly and are about 0.2 inch in length. They have brownish to black wings with dark bands. White maggots infest cherries. The mature maggot makes a hole in the cherry as it exits. In the Northwest, the western cherry fruit fly infests both home-grown and commercial cherries. Western cherry fruit fly is also found in wild bitter cherry (Prunus emarginata).
