Pecan Catocalas - Catocala spp.
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Description
Adults are moths with a wingspan of about three inches (75 mm). Their forewings are grayish with brown streaks and their hindwings are black. The moths are sometimes called “widowed underwings” because of their somber colors. Larvae are grayish with strips consisting of black spots and grow to a length of 2.5 to 3 inches (60 - 75 mm). Since their color closely resembles that of the bark, they often escape detection. Larvae are active when disturbed and move with a looping motion.
Damage
Although not a common problem, these caterpillars can strip leaves when abundant in the early spring. They are more of a problem on young trees.
Seasonal History
Moths deposit eggs on the undersides of bark scales in the fall. Larvae emerge and feed on foliage during the following spring and early summer. They pupate in silken cocoons attached to leaves. Moths emerge from late June through autumn.
When to Control
These insects rarely require control measures. Natural insect predators usually keep them in check.
