Cydia pomonella

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Cydia pomonella, infested apple
Source: Wikimedia Commons

Cydia pomonella (Linnaeus) - (apple codling moth)

The moth is a common and important pest of apple and pear fruits. It is widespread and found in nearly all apple producing regions. The larvae cause serious damage by boring into ripening apples, pears, quinces and walnuts, less frequently into cherries, apricots and other fruits. The percentage of infested fruits can reach up to 80%.

The adults lay eggs on leaves close to developing apple fruits (first generation) or later on the fruit surface. The young larvae bore into the fruits, sometimes after having fed first on the leaves. Mature larvae leave the fruits for pupation or overwinter on the bark of the trees under a silken cover and pupate in the spring. There are 2-4 generations per year.

Vernacular names
• Deutsch: Apfelwickler
• English: apple codling moth
apple worm
• Español: gusano de las manzanas
• Français: carpocapse des pommes
pyrale des pommes
• Português: lagarta-da-maçã

For management it is recommended to use insecticides only during the peak egg-laying period of the moth in order to conserve natural enemies. In addition to pheromones, the Cydia pomonella granulovirus has been used very successfully. However, cases of resistance have been reported.

The adult has a wingspan of around 2 cm and the length of a resting moth is about 1 cm. The background colour is gray with many brownish stripes or small spots. There is a conspicuous mark at the tips of each forewing, consisting of darker brown areas, sometimes mixed with orange-red parts.

Carpocapsa pomonella
Laspeyresia pomonella

For a review see Balasko et al. (2020).