How to Manage Pests UC Pest Management Guidelines Scientific
Name: Cydia pomonella (Reviewed 8/06, updated 12/09, corrected
8/11) In this Guideline: DESCRIPTION OF THE PEST Codling moth
has a 0.5 to 0.75 inch wingspan. The tip of each forewing has a
coppery-tinged, dark brown band that distinguishes codling moth
from other moths found in apple orchards. Females lay eggs
singly on leaves and sometimes on fruit later in the season. The
eggs are smaller than a pinhead, disk-shaped, and opaque white
when first laid. Just before hatching the black head of the
larvae becomes visible. Newly hatched larvae are white with
black heads. Mature larvae are 0.5 to 0.75 inch long, pinkish
white, with mottled brown heads. Depending on climatic
conditions and location in the state, there are two to four
generations of codling moth each year. Codling moth has the
greatest potential for damage of any apple pest, yet it can be
effectively controlled with properly timed treatments. It causes
two types of fruit damage: stings and