Larvicidal and adulticidal activities of malaysian seaweeds against Aedes Aegypti (L.) and Aedes Albopictus skuse (diptera: Culicidae)

Rohani Ahmad, Ke Xin Yu, Ching Lee Wong, Ibrahim Jantan

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Discovering new mosquitocidal agent is the research focus of government authorities, researchers and industrial investors. Seaweeds serve a great potential in providing unique components and compounds with effective bioactivity. In the present study, seaweed species collected from West Malaysia were evaluated for their larvicidal and adulticidal activities according to WHO guidelines. Extracts were prepared by maceration of dried seaweeds in methanol. Of the 15 species tested, the green seaweed Bryopsis pennata exhibited the strongest larvicidal activity against Aedes aegypti (LC50 value: 156.97 µg/ml) and Ae. albopictus (LC50 value: 177.50 µg/ml). The brown seaweed Sargassum siliquosum had the strongest adulticidal effect against Ae. aegypti (LC50 value: 17.53 mg/cm2) and Ae. albopictus (LC50 value: 35.40 mg/cm2), among the 11 species tested. Larvae and female adults showed signs of intoxication, such as restless movement, tremor, paralysis, and followed by eventual death, after exposure of the seaweed extract. Future investigation on the active component and mode of action of the seaweed extracts should be carried out.

Original languageEnglish
Pages (from-to)719-730
Number of pages12
JournalSoutheast Asian Journal of Tropical Medicine and Public Health
Volume47
Issue number4
Publication statusPublished - 2016

Fingerprint

Seaweed
Aedes
Culicidae
Diptera
Sargassum
Malaysia
Tremor
Paralysis
Larva
Methanol
Research Personnel
Guidelines
Research

Keywords

  • Adulticidal
  • Aedes aegypti
  • Aedes albopictus
  • Larvicidal
  • Mosquito control

ASJC Scopus subject areas

  • Medicine(all)
  • Public Health, Environmental and Occupational Health
  • Infectious Diseases

Cite this

Larvicidal and adulticidal activities of malaysian seaweeds against Aedes Aegypti (L.) and Aedes Albopictus skuse (diptera : Culicidae). / Ahmad, Rohani; Yu, Ke Xin; Wong, Ching Lee; Jantan, Ibrahim.

In: Southeast Asian Journal of Tropical Medicine and Public Health, Vol. 47, No. 4, 2016, p. 719-730.

Research output: Contribution to journalArticle

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