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Observations on outbreak and biology of Oak defoliator, <i>Gazalina chrysolopha</i> Koil

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Title: Observations on outbreak and biology of Oak defoliator, Gazalina chrysolopha Koil

Journal: Pakistan Journal of Forestry

HEC Recognition History
Category From To
Y 1900-01-01 2005-06-30

Publisher: Pakistan Forest Institute, Peshawar

Country: Pakistan

Year: 1992

Volume: 42

Issue: 3

Language: English

Categories
Forest Pests (16) Lepidopterology (5) Pest Outbreaks (2) Entomology (5304) Zoology (4980)

Abstract

ABSTRACT In 1989 on out break of Gazalina chrysolopha Koll. Occurred in oak forest (Quercus dilatata) causing serious defoliation over an area of 1600 hectares in Bagh Forest Division of Azad Jammu and Kashmir. The months emerging from mid July to mid August, lay eggs on the under surface of leaves in clusters. Hatching of eggs takes place from mid August to mid September. The caterpillars, exhibiting nocturnal and processoinary behavior, live for 10 to 11.5 months, mid August to end of June next year. Pupation takes place from mid June to end of July for a period of 1-2 months. Their life cycle is annual.

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