Host feeding responses of Aedes aegypti (L.) exposed to deltamethrin
| Autor: | Atachariya Prabaripai, Wasana Boonyuan, Theeraphap Chareonviriyaphap, Monthathip Kongmee, Michael J. Bangs |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Male
Insecticides Veterinary medicine Escape response Aedes aegypti Biology Insemination Host-Parasite Interactions Live animal Toxicology Sexual Behavior Animal chemistry.chemical_compound Aedes Escape Reaction Nitriles Pyrethrins parasitic diseases Animals Mortality Mating Ecology Evolution Behavior and Systematics Dose-Response Relationship Drug Ecology Host (biology) fungi biology.organism_classification Deltamethrin chemistry Insect Repellents Female Cues |
| Zdroj: | Journal of Vector Ecology. 36:361-372 |
| ISSN: | 1081-1710 |
| DOI: | 10.1111/j.1948-7134.2011.00177.x |
| Popis: | Escape responses of mated and unmated nulliparous Aedes aegypti mosquitoes were compared using three different concentrations of deltamethrin in the presence or absence of a live animal host using an excito-repellency (ER) test system. Both insecticide contact (excitation) and non-contact (repellency) test configurations were compared. For contact trials, mated mosquitoes showed similar escape movements among the three concentrations when host stimuli were absent. Significant differences in responses were seen between the lower concentrations of (LC(50) and LC(75) ) deltamethrin with and without hosts present (P0.05). Presence or absence of host stimuli produced no significant differences in escape response for unmated females when exposed to the highest concentration (LC(90) ) of deltamethrin. Our findings indicate that as deltamethrin concentrations decrease to sublethal levels, mating status and host cues play a more significant role in escape behavior. Therefore, insemination can influence the outcome of feeding success and flight movement of nulliparous female Ae. aegypti in contact with deltamethrin and in the presence of live host stimuli. The ER assay system serves as a useful tool for observing excitation and repellency responses of Ae. aegypti to insecticides in the presence or absence of other environmental and biological cues that can affect mosquito behavior. |
| Databáze: | OpenAIRE |
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