Biology and Life History of Poplar Shoot Borer, <I>Eucosma glaciata</I> Meyrick (Lepidoptera: Eucosmidae) in Himachal Pradesh

Abstract

The Poplar shoot Borer E. glaciata is one of the most destructive lepidopterous pest of P. ciliata in nurseries. The biology and habits of this insect have been discussed with special reference to its life history and nature of damage. Adult of E. glaciata has a longevity of 5.60 ± 0.516 days. The females lays an average of 75 to 100 eggs. The incubation period average 5.56 ± 0.527 days. The total life cycle in laboratory reared specimen varies from 35 to 40 days. The larvae damage the apical tIPS, resulting in die-back and forking.