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Roqaya Mohammad A AlMehmadi
Document Details
Document Type
:
Article In Journal
Document Title
:
Larvicidal Histopathological and Ultra-structure Studies of Matrichiaria chamomella Extracts Against the Rift Valley Fever Mosquito Culex quinquefascia tus (Culicidaee: Diptera)
Larvicidal Histopathological and Ultra-structure Studies of Matrichiaria chamomella Extracts Against the Rift Valley Fever Mosquito Culex quinquefascia tus (Culicidaee: Diptera)
Document Language
:
English
Abstract
:
The present study was carried out to establish the larvicidal properties and histopathological effect of Matricharia chamomela plant extract on third larval instar of the Culex quinquefasciatus, the mosquito vector of Rift valley fever in Saudi Arabia using stock solution from King Saud University. Results of log-probit analysis (at 95% confidence level) revealed that LC 50 and LC values gradually decreased with the exposure penods (24 and 48h). This study shows that the larvicidal action of the M. ehaniomelia plant extract is positively correlated to the concentration tested. The histopathological changes caused by LC 90 have been investigated using light and an electron microscope. Observations were revealed over time (24 and 48h). The most noticeable effect is the increasing damage to the larvae mid 50 gut epithelium, including cell vacuolization and rupture of the epithelial walls. microvillus damage and the epithelium cell contents passing into the mid-gut lumen. This article is the first report of the toxicity and histopathological effects of the M. chwnornella as a bioinsecticide in the mid-gut of Cx. quin quinquefascitus larvae. These results indicate that the tested extract may affect delayed larval development.
ISSN
:
1812-5670
Journal Name
:
Journal of Entomology- Academic Journals Inc.
Volume
:
8
Issue Number
:
1
Publishing Year
:
1432 AH
2011 AD
Article Type
:
Article
Added Date
:
Thursday, May 31, 2012
Researchers
Researcher Name (Arabic)
Researcher Name (English)
Researcher Type
Dr Grade
Email
رقية محمد المحمادي
Almehmadi, Roqaiah Mohammad
Researcher
Doctorate
d_almehmadi@yahoo.com
Files
File Name
Type
Description
33424.pdf
pdf
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