Cover Image

The role of metabolic enzymes in the development of resistance in cocoa mirid, Helopeltis Theivora Waterhouse.

Topical bioassays were conducted to evaluate the toxicity of deltamethrin, cypermethrin, y-HCH and chlopyrifos against 3 populations of H. theivora namely the cocoa populations (Serdang. Selangor) and Sungai Tekam, Pahang) and tea population (Banting. Selangor). The synergistic effects of pipe...

Full description

Saved in:
Bibliographic Details
Main Author: Universiti Putra Malaysia, Research Management Centre
Format: Journal
Language:English
Published: Research Management Centre, Universiti Putra Malaysia 2005
Online Access:http://psasir.upm.edu.my/id/eprint/321/1/synthesis_8.pdf
http://psasir.upm.edu.my/id/eprint/321/
Tags: Add Tag
No Tags, Be the first to tag this record!
id my.upm.eprints.321
record_format eprints
spelling my.upm.eprints.3212014-11-19T08:15:08Z http://psasir.upm.edu.my/id/eprint/321/ The role of metabolic enzymes in the development of resistance in cocoa mirid, Helopeltis Theivora Waterhouse. Universiti Putra Malaysia, Research Management Centre Topical bioassays were conducted to evaluate the toxicity of deltamethrin, cypermethrin, y-HCH and chlopyrifos against 3 populations of H. theivora namely the cocoa populations (Serdang. Selangor) and Sungai Tekam, Pahang) and tea population (Banting. Selangor). The synergistic effects of piperonyl butoxide (PBO), maleic acid diethyl ether (MADE) and s.s.s-tributyl phosphorotrittlioate (DEF) were also tested using similar technique. Based on the LDso values, the toxicity ofthe insecticide tested for the Serdang and Sungai Tekam populations were chlopyrifos > y-HCH > cypermethrin > delWnethrin; forthe Banting population was y-HCH > cypermethrin > chlorpyrifos > deltamethrin. The most toxic insecticide was chlopyrifos with LD50 value of 3.028 x 10-2mg/l for the Sungai Tekam population. The synergism of PBO on cypermethrin was higher compared to other insecticides tested. Research Management Centre, Universiti Putra Malaysia 2005-03 Journal NonPeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/321/1/synthesis_8.pdf Universiti Putra Malaysia, Research Management Centre (2005) The role of metabolic enzymes in the development of resistance in cocoa mirid, Helopeltis Theivora Waterhouse. Synthesis: R&D Digest of Universiti Putra Malaysia, 8 . ISSN 0127-9394
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description Topical bioassays were conducted to evaluate the toxicity of deltamethrin, cypermethrin, y-HCH and chlopyrifos against 3 populations of H. theivora namely the cocoa populations (Serdang. Selangor) and Sungai Tekam, Pahang) and tea population (Banting. Selangor). The synergistic effects of piperonyl butoxide (PBO), maleic acid diethyl ether (MADE) and s.s.s-tributyl phosphorotrittlioate (DEF) were also tested using similar technique. Based on the LDso values, the toxicity ofthe insecticide tested for the Serdang and Sungai Tekam populations were chlopyrifos > y-HCH > cypermethrin > delWnethrin; forthe Banting population was y-HCH > cypermethrin > chlorpyrifos > deltamethrin. The most toxic insecticide was chlopyrifos with LD50 value of 3.028 x 10-2mg/l for the Sungai Tekam population. The synergism of PBO on cypermethrin was higher compared to other insecticides tested.
format Journal
author Universiti Putra Malaysia, Research Management Centre
spellingShingle Universiti Putra Malaysia, Research Management Centre
The role of metabolic enzymes in the development of resistance in cocoa mirid, Helopeltis Theivora Waterhouse.
author_facet Universiti Putra Malaysia, Research Management Centre
author_sort Universiti Putra Malaysia, Research Management Centre
title The role of metabolic enzymes in the development of resistance in cocoa mirid, Helopeltis Theivora Waterhouse.
title_short The role of metabolic enzymes in the development of resistance in cocoa mirid, Helopeltis Theivora Waterhouse.
title_full The role of metabolic enzymes in the development of resistance in cocoa mirid, Helopeltis Theivora Waterhouse.
title_fullStr The role of metabolic enzymes in the development of resistance in cocoa mirid, Helopeltis Theivora Waterhouse.
title_full_unstemmed The role of metabolic enzymes in the development of resistance in cocoa mirid, Helopeltis Theivora Waterhouse.
title_sort role of metabolic enzymes in the development of resistance in cocoa mirid, helopeltis theivora waterhouse.
publisher Research Management Centre, Universiti Putra Malaysia
publishDate 2005
url http://psasir.upm.edu.my/id/eprint/321/1/synthesis_8.pdf
http://psasir.upm.edu.my/id/eprint/321/
_version_ 1643821794206941184
score 13.149126

Similar Items