Subscribe Now Subscribe Today
Science Alert
 
FOLLOW US:     Facebook     Twitter
Blue
   
Curve Top
Pakistan Journal of Biological Sciences
  Year: 2004 | Volume: 7 | Issue: 5 | Page No.: 848-851
DOI: 10.3923/pjbs.2004.848.851
Shoot Borer, Hypsipyla robusta Moore (Lepidoptera: Pyralidae) Infestation on Chukrasia velutina Wight et Arn. in Hilly Areas of Bangladesh
Hossain M.A. , M.M. Hossain , A.K. Azad and M.A. Islam

Abstract: The nature and extent of damage of shoot borer, Hypsipyla robusta (Moore) Lepidoptera: Pyralidae was studied in 2-8 years old Chukrasia velutina Wight et Arn. plantations in hilly areas of Chittagong, Bangladesh. A single tree could have attacked several times in the season. About 47% C. velutina trees were found to have attacked at least once in their lifetime. The infestation rate was more pronounced on the hill slopes (56%) than on the valleys (37%). A good number of trees (60%) were found to exhibit recovery trend after the infestation while other trees were with the formation of fork, cork, knot, curve, twist, whorled branching from the point of infestation (Mostly at a height of 2-3 m). It was estimated that about 42% potential biomass production was lost due to the infestation. Apart from that, some trees were found to show an encouraging `resistance` character keeping intact themselves against the infestation that referred an ample scope of propagation and plantation in future for a better inheritance.
PDF References Citation Report Citation
How to cite this article:

Hossain M.A. , M.M. Hossain , A.K. Azad and M.A. Islam , 2004. Shoot Borer, Hypsipyla robusta Moore (Lepidoptera: Pyralidae) Infestation on Chukrasia velutina Wight et Arn. in Hilly Areas of Bangladesh. Pakistan Journal of Biological Sciences, 7: 848-851.

DOI: 10.3923/pjbs.2004.848.851

URL: https://scialert.net/abstract/?doi=pjbs.2004.848.851
 
COMMENT ON THIS PAPER
 
 
 

 
  Navigation
 
  Online First
  Current Issue
  Previous Issues
  Editorial Board
  Submit a Manuscript
  Guide to Authors
  Subscribe to E-alerts

  Indexed In
 
  AGRIS
  ASCI-Database
  Asian Digital Library
  Cambridge Scientific Abstract
  Chemical Abstract Services
  Google Scholar
  ISI Web of Knowledge
  PubMed
  SCIMAGO
  Thomson ISI

       

       

Science Alert
Curve Bottom