Life history and blood feeding activity of a Philippine population of Aedes Albopictus skuse (Diptera: Culicidae) under laboratory conditions

Date

4-2012

Degree

Bachelor of Science in Agriculture

Major Course

Major in Entomology

College

College of Agriculture and Food Science (CAFS)

Adviser/Committee Chair

Barbara Caoili

Abstract

The life history, fecundity and blood feeding time of Aedes albopictus, an emerging important vector of dengue viruses in the Philippines, was investigated under laboratory conditions (26.7 ± 0.9 °C and 83% ± 5.7% RH). The average development time of each life stages are as follows: eggs, 1.84 ± 0.8 days; larval stage: first instar, 2.31 ± 0.5 days; second instar, 1.11 ± 0.1 days; third instar, 1.12 ± 0.1 days; fourth instar 1.33 ± 0.2 days; pupal stage, 1.94 ± 0.1 days; and 3.91 ± 1.2 days for the adult longevity. The observed total developmental time from egg to adult was 13.55 ± 1.0 days. Male to female ratio was 1.2:1.0. Females laid an average of 46.2 ± 32.3 eggs. Mortality factor from egg to pupal stage was K= 0.3808. Peak feeding time of Ae. albopictus regardless of age was at 07:00H, which is the first exposure period to the host. Highest frequency of probing during this time was observed in 5 days old (DO) Ae. albopictus females followed by 7, 4, 6 and 3 DO. Additional peak biting time of 6 and 7 DO females was at 10:00H, while that of 3 DO females was at 21:00H and 03:00H. In addition, no null observation was recorded at any observation time point. These results indicate that an effective mosquito management control strategy should be aimed at preventing Ae. albopictus vectorial capacity anytime of the day.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

Thesis

Document Type

Thesis

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