[Home ] [Archive]   [ فارسی ]  
:: Main :: About :: Current Issue :: Archive :: Search :: Submit :: Contact ::
:: Volume 9, Issue 2 (Iranian south medical of journals 2007) ::
Iran South Med J 2007, 9(2): 123-130 Back to browse issues page
Comparative evaluation of persistence and residue of deltamethrin and cyfluthrin on different surfaces at Iranshahr area in Sistan & Baluchistan province in Iran 2004-2005
Seyed Mohammad Abtahi Mr 1, Mansoureh Shaieghy Ms, Mohammad Reza Abani Mr, Kamran Akbarzadeh Mr, Hasan Vatandoost Mr, Hossain Ladoni Mr, Hossain Darabi Mr
1- , smh_abtahi@yahoo.com
Abstract:   (11608 Views)
Background: Malaria is still one of the health problems in Iran. Resistance of Anopheles stephensi -the principal vector of the disease in the southeast of Iran- to insecticides such as DDT, malathion and dieldrin has been reported in south of the country. The present study was designed to estimate the persistence and residue of deltamethrin and cyfluthrin on different surfaces. Methods: After testing the surface of selected locations for previous insecticides, 4 locations were sprayed with deltamethrin (25 mg/m2) and cyfluthrin (20 mg/m2). A total of 22 conical tubes were installed and fixed on surfaces of walls and ceilings made from plaster, mud and wood. In each conical tube, 10 An. stephensi were released and after half an hour exposure these mosquitoes were transmitted to sterile cups. After 24 hours, the obtained results were recorded according to the survival and mortality rate of mosquitoes. These tests were carried out from 5 days after spraying and repeated every 15 days until the mortality rate decreased to 60-65%. Results: Persistence and residue rate of deltamethrin 5% with the scale of 25 mg/m2 of effective substance was 3 months at most. Afterwards persistence and residue effect of this insecticide decreased on absorbent and nonabsorbent surfaces. Persistence and residue rate of deltamethrin 10% with the scale of 20 mg/m2 on absorbent and nonabsorbent surfaces in Sistan & Baluchistan province climate was estimated 2.5 months. Afterwards, its persistence and residue effect decreased significantly. In the sprayed locations with deltamethrin, there was no correlation between the An. stephensi mortality and absorbent (plaster and muddy) and nonabsorbent (wooden) surfaces (P>0.05). Also, in locations sprayed with cyfluthrin there was no significant correlation between the two types of surfaces, however, the mortality rate was significantly different between plaster and muddy surfaces (P=0.007). Moreover, from the point of residual efficacy, there was a remarkable correlation between deltamethrin and cyfluthrin (P<0.0001). Conclusion: Both deltamethrin and cyfluthrin have adequate residual effect on absorbent and nonabsorbent surfaces, though deltamethrin shows a higher efficiency in comparison to cyfluthrin in control program for malaria vector.
Keywords: deltamethrin, cyfluthrin, Anopheles stephensi, malaria
Full-Text [PDF 363 kb]   (1537 Downloads)    
Type of Study: Original | Subject: General
Received: 2009/01/13 | Accepted: 2009/01/13 | Published: 2009/01/13
Send email to the article author

Add your comments about this article
Your username or Email:

CAPTCHA


XML   Persian Abstract   Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Abtahi S M, Shaieghy M, Abani M R, Akbarzadeh K, Vatandoost H, Ladoni H et al . Comparative evaluation of persistence and residue of deltamethrin and cyfluthrin on different surfaces at Iranshahr area in Sistan & Baluchistan province in Iran 2004-2005. Iran South Med J. 2007; 9 (2) :123-130
URL: http://ismj.bpums.ac.ir/article-1-29-en.html


Volume 9, Issue 2 (Iranian south medical of journals 2007) Back to browse issues page
دانشگاه علوم پزشکی بوشهر، طب جنوب ISMJ

Iranian South Medical Journal is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License which allows users to read,
copy, distribute and make derivative works for non-commercial purposes from the material, as long as the author of the original work is cited properly

Copyright © 2017, Iranian South Medical Journal| All Rights Reserved

Persian site map - English site map - Created in 0.05 seconds with 32 queries by YEKTAWEB 3961