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Research
Hassan Vatandoost
school of public Health , tehran University of Medical Sciences
Corresponding Author
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Objective: Malaria is one of the public health problem in southern Iran. The main activity of vector control is indoor residual spraying using pyrethrpids. The aims of study was to evaluate the biological assays of deltamethrin WG250 at different surfaces of wall.
Materials and methods: The persistency of deltamethrin WG250 at 25 mg/m2 was studied on different local surfaces of rooms such as plaster and mud surfaces (sorbent) as well as wooden and thatch roofs (as non-sorbent). Contact bioassays were carried out using WHO standard cones and lab-bred sugar-fed, 48-72 h old females of Anopheles stephensi (Iranshahr strain). In contact bioassays carried out on sprayed surfaces for 150 days,
Results and discussion: deltamethrin WG250 (25 mg/m2) caused 43.43-100.0% on sorbent surfaces and 61.11-100.0% on non-sorbent surfaces and persist about 3.5 months in the environmental condition of Saravan district. The fumigant bioassay of deltamethrin WG250 revealed 50-100% mortalities after one month.
Keywords
Deltamethrin, Residual effects, Fumigant efficacy, Anopheles stephensi, Malaria, Iran
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This is a preprint. It has not completed peer review.
Research
Hassan Vatandoost
school of public Health , tehran University of Medical Sciences
Corresponding Author
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
History
CURRENT STATUS: Posted
Version 1
Posted 28 Feb, 2020
No community comments so far
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
Subject Areas
Parasitology
License:
This work is licensed under a CC BY 4.0 License. Read Full License
Objective: Malaria is one of the public health problem in southern Iran. The main activity of vector control is indoor residual spraying using pyrethrpids. The aims of study was to evaluate the biological assays of deltamethrin WG250 at different surfaces of wall.
Materials and methods: The persistency of deltamethrin WG250 at 25 mg/m2 was studied on different local surfaces of rooms such as plaster and mud surfaces (sorbent) as well as wooden and thatch roofs (as non-sorbent). Contact bioassays were carried out using WHO standard cones and lab-bred sugar-fed, 48-72 h old females of Anopheles stephensi (Iranshahr strain). In contact bioassays carried out on sprayed surfaces for 150 days,
Results and discussion: deltamethrin WG250 (25 mg/m2) caused 43.43-100.0% on sorbent surfaces and 61.11-100.0% on non-sorbent surfaces and persist about 3.5 months in the environmental condition of Saravan district. The fumigant bioassay of deltamethrin WG250 revealed 50-100% mortalities after one month.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
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