Feasibility Study Of Zno Nanorods For Sensor Application

A field study was conducted to evaluate the effects of three insecticides (abamectin, malathion and diafenthiuron) on the interactions between Bemisia tabaci (Homoptera: Aleyrodidae) the brinjal pest, and the parasitoid Encarsia hitam (Hymenoptera: Aphelinidae), as well as on plant performance...

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Main Author: Ridhuan, Nur Syafinaz
Format: Thesis
Language:English
Published: 2013
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Online Access:http://eprints.usm.my/43902/1/Nur%20Syafinaz%20Binti%20Ridhuan24.pdf
http://eprints.usm.my/43902/
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spelling my.usm.eprints.43902 http://eprints.usm.my/43902/ Feasibility Study Of Zno Nanorods For Sensor Application Ridhuan, Nur Syafinaz QH1 Natural history (General - Including nature conservation, geographical distribution) A field study was conducted to evaluate the effects of three insecticides (abamectin, malathion and diafenthiuron) on the interactions between Bemisia tabaci (Homoptera: Aleyrodidae) the brinjal pest, and the parasitoid Encarsia hitam (Hymenoptera: Aphelinidae), as well as on plant performances and fruit production. All insecticides were applied weekly at recommended doses over two brinjal cropping periods. Overall results showed high total numbers of whitefly on untreated plants in the first (14.08 ± 1.44 per leaf) and second (17.50 ± 4.65 per leaf) cropping periods compared to plants that were treated with abamectin (13.88 ± 3.32), malathion (9.80 ± 2.19 per leaf) and diafenthiuron (10.40 ± 2.41 per leaf) in the first crop and in second crop with 15.65 ± 5.42, 8.35 ± 2.79 and 9.48 ± 2.3 per leaf respectively. Malathion and diafenthiuron were the most effective insecticides that reduced whitefly populations below economic threshold level (ETL). Percentages of parasitism was high on whitefly nymphs in untreated control plants in the first and second cropping periods (3.17% - 12.82%) and (0.52% - 10.00%) respectively compared with insecticide-treated plants (0.62% - 12.50%) and (1.01% - 8.00%) respectively. All insecticides affected the parasitization of whitefly although no significance difference was observed among treatments. 2013-04 Thesis NonPeerReviewed application/pdf en http://eprints.usm.my/43902/1/Nur%20Syafinaz%20Binti%20Ridhuan24.pdf Ridhuan, Nur Syafinaz (2013) Feasibility Study Of Zno Nanorods For Sensor Application. Masters thesis, Universiti Sains Malaysia.
institution Universiti Sains Malaysia
building Hamzah Sendut Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Sains Malaysia
content_source USM Institutional Repository
url_provider http://eprints.usm.my/
language English
topic QH1 Natural history (General - Including nature conservation, geographical distribution)
spellingShingle QH1 Natural history (General - Including nature conservation, geographical distribution)
Ridhuan, Nur Syafinaz
Feasibility Study Of Zno Nanorods For Sensor Application
description A field study was conducted to evaluate the effects of three insecticides (abamectin, malathion and diafenthiuron) on the interactions between Bemisia tabaci (Homoptera: Aleyrodidae) the brinjal pest, and the parasitoid Encarsia hitam (Hymenoptera: Aphelinidae), as well as on plant performances and fruit production. All insecticides were applied weekly at recommended doses over two brinjal cropping periods. Overall results showed high total numbers of whitefly on untreated plants in the first (14.08 ± 1.44 per leaf) and second (17.50 ± 4.65 per leaf) cropping periods compared to plants that were treated with abamectin (13.88 ± 3.32), malathion (9.80 ± 2.19 per leaf) and diafenthiuron (10.40 ± 2.41 per leaf) in the first crop and in second crop with 15.65 ± 5.42, 8.35 ± 2.79 and 9.48 ± 2.3 per leaf respectively. Malathion and diafenthiuron were the most effective insecticides that reduced whitefly populations below economic threshold level (ETL). Percentages of parasitism was high on whitefly nymphs in untreated control plants in the first and second cropping periods (3.17% - 12.82%) and (0.52% - 10.00%) respectively compared with insecticide-treated plants (0.62% - 12.50%) and (1.01% - 8.00%) respectively. All insecticides affected the parasitization of whitefly although no significance difference was observed among treatments.
format Thesis
author Ridhuan, Nur Syafinaz
author_facet Ridhuan, Nur Syafinaz
author_sort Ridhuan, Nur Syafinaz
title Feasibility Study Of Zno Nanorods For Sensor Application
title_short Feasibility Study Of Zno Nanorods For Sensor Application
title_full Feasibility Study Of Zno Nanorods For Sensor Application
title_fullStr Feasibility Study Of Zno Nanorods For Sensor Application
title_full_unstemmed Feasibility Study Of Zno Nanorods For Sensor Application
title_sort feasibility study of zno nanorods for sensor application
publishDate 2013
url http://eprints.usm.my/43902/1/Nur%20Syafinaz%20Binti%20Ridhuan24.pdf
http://eprints.usm.my/43902/
_version_ 1643710864215244800
score 13.211869