Ulat bungkus Crematopsyche pendulla, Joannis (Lepidoptera psychidae) serangga perosak berbagai pokok di taman rekreasi.

Sajap, Ahmad Said (1983) Ulat bungkus Crematopsyche pendulla, Joannis (Lepidoptera psychidae) serangga perosak berbagai pokok di taman rekreasi. In: Seminar Kebangsaan 1983 : Hutan, Taman Negara dan Taman Bandaran untuk Rekreasi, 26-28 September 1983, Serdang, Selangor.

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Abstract

Ulat bungkus, Crematopsyche pendula, Joannis, serangga perosak polifagus, didapati menyerang berbagai-bagai pokok di taman-taman rekreasi. Ia menyebabkan daun bernekrosis dan berlubang-lubang dan di mana terdapat populasi ulat yang tinggi keseluruhan daun pada pokok atau ranting yang diserang kelihatan perang dan luruh pramatang. Rama-rama betina bertelur sebanyak 50-100 biji menetas selepas 6-8 hari. Jangka masa larva 19-27 hari dan pupa 14-24 hari. Dwimorfisme jantina berlaku dalam rupabentuk pupa dan rama-rama. Enam parasit didapati memparasit ulat-ulat ini.

Item Type:Conference or Workshop Item (Paper)
Subject:Insect pests - Biological control
Subject:Entomology
Faculty or Institute:Faculty of Forestry
Publisher:Fakulti Perhutanan, Universiti Pertanian Malaysia
ID Code:17801
Deposited By: kmportal
Deposited On:21 Sep 2011 01:57
Last Modified:12 Nov 2013 07:24

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