Mohammad Reza Fakoorziba; Mohammad Djaefar Moemenbellah-Fard; Kourosh Azizi; Heshmatollah Shekarpoor; Hamzeh Alipoor
Volume 2, Issue 1 , January 2014, , Pages 2-7
Abstract
Background: Medicinal plant extracts such as those obtained from Salvia species have a wide variety of chemical compounds in their essential oils. The repellency of a number of essential oils including those from the labiates like Salvia against several insect species including the common house flies ...
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Background: Medicinal plant extracts such as those obtained from Salvia species have a wide variety of chemical compounds in their essential oils. The repellency of a number of essential oils including those from the labiates like Salvia against several insect species including the common house flies is reported. Objective: The aim of this investigation was to find out the excito-repellency effects of Salvia sclarea L. (Lamiaceae) extracts against adult house flies, Musca domestica L. (Diptera: Muscidae). Methods: Air-dried plant material from the aerial parts of S. sclarea was subjected to hydro-distillation in a Clevenger type glass apparatus model Soxhlet with acetone, benzene, petroleum ether, chloroform, and aqueous solvents. Only adult house flies were inserted into an exposure chamber and their behavior was monitored for feeding tendency, repellency rate and deterrence rate. Statistical analyses were carried out by one-way analysis of variance (ANOVA) with computation of the significance of differences in the outcome of various treatments. Results: There were significant differences among most of the various extracts with their controls in the sequential effects of feeding (P=0.04), deterrent (P=0.023) and repellency (P=0.01) rates of house flies. The order of potency for various extracts with a concentration of 100 g/l was as follows: petroleum ether> benzene> water> acetone> chloroform. Conclusion: It is thus conceivable to search for native means of combating house flies by fractionating the active ingredients in the Clary sage in the light of its excito-repellency effects.
Hamzeh Alipour; Mohammad Reza Abaie; Hossein Ladonni; Ali Akbar Kadivar
Volume 1, Issue 2 , October 2013, , Pages 94-97
Abstract
Background: Malaria is the most important vector-borne disease in many tropical countries all over the world. Because of the widespread use of pyrethroid insecticide treated mosquito nets in the world, the effects of excito-repellency (ER) phenomenon of pyrethroids against main malaria vector, Anopheles ...
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Background: Malaria is the most important vector-borne disease in many tropical countries all over the world. Because of the widespread use of pyrethroid insecticide treated mosquito nets in the world, the effects of excito-repellency (ER) phenomenon of pyrethroids against main malaria vector, Anopheles stephensi were studied.Methods: The ER phenomenon of three concentrations of two synthetic pyrethroids (permethrin and deltamethrin) as well as etofenprox was evaluated against Anopheles stephensi under laboratory conditions. Female 5-7 day unfed mosquitoes were exposed to animal bait in holder and the animal’s back and head were covered with impregnated bed net in -ER test chamber.Results: Deltamethrin was more effective compared to other insecticides in killing the mosquitoes. The mean of entry to exit trap showed significant differences in all concentrations of insecticides (P<0.05).Conclusion: This study showed that ER phenomenon of insecticides should be noticed in vector control programs. The ranked data indicated the relative potency of both pyrethroids and etofenprox. Deltamethrin repels the female mosquitoes more than other insecticides tested.