Codling Moth

Codling Moth

Codling Moth Life Cycle

                    Illustration by EH Zeck.


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Common names:  Codling Moth

Scientific name:  Carpocapsa pomonella

Region:  This Caterpillar can be found throughout North America.

Life cycle:  This insect produces two generations each year.

It overwinters in a cocoon beneath bark or in orchard debris.

Physical Description: This one-inch long caterpillar is pink with a brown headThe adult is a grayish brown moth with lacy brown lines on the fore wings and pale, fringed hind wings, and a wingspan of about 3/4 of an inch.

The solitary, flat eggs are white and are laid on leaves, twigs or fruit buds of the host plants.

Feeding characteristics: The pest attacks the apple, pear, quince, and walnut treesThe larvae feed by entering young apples at the blossom end, 3 to 4 weeks after the petals have fallen from the blossoms, and when full grown, tunnel out leaving brown excrement on the outsideLater in the season, second-generation larvae enter fruits from any end.

Controls:  The Braconid Wasp and some Trichogramma Wasps are natural predators that can help control problems.

You can also wrap the trunk, in early spring, with corrugated paperAnother way to trap the species is to apply a band of Tanglefoot at the base of the tree in July to catch the larvae or caterpillar as they crawl down the tree after leaving the applesThey will crawl downward seeking a place to spin a cocoon.

You can also spray the trees with ryania, dust with sabadilla (for the larvae) or, during the egg stage, spray with a dormant-oil solution.

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