Codling Moth
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Codling Moth .jpg) The codling moth larva is one of the very destructive pests introduced from Europe by settlers. Female moths lay the scale-like eggs singly on developing fruit or adjacent leaves or stems just after sundown each night. Upon hatching the larvae enter into the calyx end or side of the fruit then tunnel to the center where they feed and develop. Brown frass is often noticed near the calyx end of the developing fruit. The larva is pinkish to white in color with a brown head and can reach 3/4 inch(1.5cm). Larval development is completed in 3 to 5 weeks. Larvae exit the fruit to pupate in a thick silken cocoon on the bark or other protected areas. The fully developed larva is the overwintering stage. Pupation occurs in spring beginning about the same time as bloom with adults first active in late April or early May. Susceptible Plants- Apples, and less frequently pears, and quince. Symptoms- Codling moths at the caterpillar stage cause extensive tunnels through fruit, spoiling it. Damaged fruit may ripen prematurely and drop. Prevention and Control- Home owners have a few different options for controlling codling moths. Home owners can use pheromone traps such as Wing Trap Kit for Codling moth Cydia pomonella for Codling moth Cydia pomonella to time insecticide sprays, or to "trap out" all the male moths. This involves using enough pheromone traps such that all of the male moths are captured before the female moths mate.
Female moths are then able to lay only unfertilized eggs that will not develop. Typically, 2 to 4 traps per tree are required for this to be successful. This is less effective if there are additional sources of mated females, such as other trees in the neighborhood or wild hosts. Traps should be put out at the pink stage of bud development. Every month, pheromone lures need to be replaced. Codling moths can be distinguished from other insects in the traps by their bronze wing tips. Biological Control- Beneficial Nematodes Insecticidal Control- Garlic Barrier Insect Repellent
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