Family COSSIDAE
Zeuzera pyrina (L.)
The larvae bore within the shoots; they also tunnel within stems and branches of less than 10 cm in diameter. Damage is particularly serious on young trees, some of which may be killed.
life-cycle: The biological cycle is one to three years depending on region. The female lays eggs separately or in small groups in cavities of trunks and branches of apple trees, pear trees. Larval development is protracted and lasts for up to 2 or 3 year. The frass can be found at the base of trees. The pupal stage occurs inside the gallery, in a cocoon of silk and wood debris.
Resource: A textbook of Agriculture Entomology
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