Insecticidal and repellant activities of selected botanical extracts against rice weevil (Sitophilus oryzae L.)

Stored rice is infected primarily by adult rice weevil (Sitophilus oryzae L.). Botanical pesticides could be alternatives to synthetic insecticides due to their effectiveness and lower toxicity. This study investigated repellence activity, insecticidal activity and phytochemical composition of...

Full description

Saved in:

Bibliographic Details
Main Author:	Ali Albariman, Najm Hussein
Format:	Thesis
Language:	English English English
Published:	2020
Subjects:	QH Natural history
Online Access:	http://eprints.uthm.edu.my/1044/1/24p%20NAJM%20HUSSEIN%20ALI%20ALBARIMAN.pdf http://eprints.uthm.edu.my/1044/3/NAJM%20HUSSEIN%20ALI%20ALBARIMAN%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/1044/2/NAJM%20HUSSEIN%20ALI%20ALBARIMAN%20WATERMARK.pdf
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my-uthm-ep.1044
record_format	uketd_dc
spelling	my-uthm-ep.10442021-09-21T04:35:04Z Insecticidal and repellant activities of selected botanical extracts against rice weevil (Sitophilus oryzae L.) 2020-09 Ali Albariman, Najm Hussein QH Natural history Stored rice is infected primarily by adult rice weevil (Sitophilus oryzae L.). Botanical pesticides could be alternatives to synthetic insecticides due to their effectiveness and lower toxicity. This study investigated repellence activity, insecticidal activity and phytochemical composition of acetone and ethanol extracts of basil leaves (Ocimum basilicum), turmeric leaves (Curcuma longa) and akar mempelas stem (Tetracera macrophylla) against adult rice weevil (Sitophilus oryzae L.) on stored rice. Methodology involved preparing 0%, 10%, 20% and 30% concentrations of either ethanol or acetone extract of each plant to be examined for their repellence activity, contact toxicity and phytochemical composition using gas chromatography-mass spectroscopy (GC-MS). Results showed that acetone and ethanol extracts of the three plants exerted dose-dependent repellence and time-dependent contact toxicities. Ethanol extracts of the three plants showed superior repellence activity and contact toxicity were superior to those of their acetone extracts, while the repellence activity and contact toxicities of the ethanol and acetone extracts of basil were superior to those of turmeric and Akar mempelas. GC-MS indicated that basil acetone extract contained anethole, while the ethanol extract contained bis (2-Ethylhexyl) phthalate. Turmeric acetone extract contained Ar-turmerone, while the ethanol extract contained bis(2-Ethylhexyl) phthalate. Akar mempelas stem acetone extract contained 1-tetradecene, while the ethanol extract contained 1-octadecene and bis(2- Ethylhexyl) phthalate. In conclusion, acetone and ethanol extracts of basil leaves, turmeric leaves and akar mempelas stem exhibited effective dose-dependent repellant activities and time-dependent insecticidal activities against the adult rice weevil. However, the repellant and contact toxicity of ethanol extracts of the basil, turmeric and akar mempelas were superior to those of their acetone extracts, while the repellence and contact toxicities of the ethanol and acetone extracts of basil were superior to those of turmeric and akar mempelas. 2020-09 Thesis http://eprints.uthm.edu.my/1044/ http://eprints.uthm.edu.my/1044/1/24p%20NAJM%20HUSSEIN%20ALI%20ALBARIMAN.pdf text en public http://eprints.uthm.edu.my/1044/3/NAJM%20HUSSEIN%20ALI%20ALBARIMAN%20COPYRIGHT%20DECLARATION.pdf text en staffonly http://eprints.uthm.edu.my/1044/2/NAJM%20HUSSEIN%20ALI%20ALBARIMAN%20WATERMARK.pdf text en validuser mphil masters Universiti Tun Hussein Onn Malaysia Fakulti Sains Gunaan dan Teknologi
institution	Universiti Tun Hussein Onn Malaysia
collection	UTHM Institutional Repository
language	English English English
topic	QH Natural history
spellingShingle	QH Natural history Ali Albariman, Najm Hussein Insecticidal and repellant activities of selected botanical extracts against rice weevil (Sitophilus oryzae L.)
description	Stored rice is infected primarily by adult rice weevil (Sitophilus oryzae L.). Botanical pesticides could be alternatives to synthetic insecticides due to their effectiveness and lower toxicity. This study investigated repellence activity, insecticidal activity and phytochemical composition of acetone and ethanol extracts of basil leaves (Ocimum basilicum), turmeric leaves (Curcuma longa) and akar mempelas stem (Tetracera macrophylla) against adult rice weevil (Sitophilus oryzae L.) on stored rice. Methodology involved preparing 0%, 10%, 20% and 30% concentrations of either ethanol or acetone extract of each plant to be examined for their repellence activity, contact toxicity and phytochemical composition using gas chromatography-mass spectroscopy (GC-MS). Results showed that acetone and ethanol extracts of the three plants exerted dose-dependent repellence and time-dependent contact toxicities. Ethanol extracts of the three plants showed superior repellence activity and contact toxicity were superior to those of their acetone extracts, while the repellence activity and contact toxicities of the ethanol and acetone extracts of basil were superior to those of turmeric and Akar mempelas. GC-MS indicated that basil acetone extract contained anethole, while the ethanol extract contained bis (2-Ethylhexyl) phthalate. Turmeric acetone extract contained Ar-turmerone, while the ethanol extract contained bis(2-Ethylhexyl) phthalate. Akar mempelas stem acetone extract contained 1-tetradecene, while the ethanol extract contained 1-octadecene and bis(2- Ethylhexyl) phthalate. In conclusion, acetone and ethanol extracts of basil leaves, turmeric leaves and akar mempelas stem exhibited effective dose-dependent repellant activities and time-dependent insecticidal activities against the adult rice weevil. However, the repellant and contact toxicity of ethanol extracts of the basil, turmeric and akar mempelas were superior to those of their acetone extracts, while the repellence and contact toxicities of the ethanol and acetone extracts of basil were superior to those of turmeric and akar mempelas.
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Ali Albariman, Najm Hussein
author_facet	Ali Albariman, Najm Hussein
author_sort	Ali Albariman, Najm Hussein
title	Insecticidal and repellant activities of selected botanical extracts against rice weevil (Sitophilus oryzae L.)
title_short	Insecticidal and repellant activities of selected botanical extracts against rice weevil (Sitophilus oryzae L.)
title_full	Insecticidal and repellant activities of selected botanical extracts against rice weevil (Sitophilus oryzae L.)
title_fullStr	Insecticidal and repellant activities of selected botanical extracts against rice weevil (Sitophilus oryzae L.)
title_full_unstemmed	Insecticidal and repellant activities of selected botanical extracts against rice weevil (Sitophilus oryzae L.)
title_sort	insecticidal and repellant activities of selected botanical extracts against rice weevil (sitophilus oryzae l.)
granting_institution	Universiti Tun Hussein Onn Malaysia
granting_department	Fakulti Sains Gunaan dan Teknologi
publishDate	2020
url	http://eprints.uthm.edu.my/1044/1/24p%20NAJM%20HUSSEIN%20ALI%20ALBARIMAN.pdf http://eprints.uthm.edu.my/1044/3/NAJM%20HUSSEIN%20ALI%20ALBARIMAN%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/1044/2/NAJM%20HUSSEIN%20ALI%20ALBARIMAN%20WATERMARK.pdf
_version_	1747830729230778368

Insecticidal and repellant activities of selected botanical extracts against rice weevil (Sitophilus oryzae L.)

Similar Items