Entomological Research (2009) 39, 78-83

Chenniappan Kuppusamy, Kadarkarai Murugan, Narayanasamy Arul and Perumal Yasodha (2009)
Larvicidal and insect growth regulator effect of alpha-amyrin acetate from Catharanthus roseus Linn against the malaria vector Anopheles stephensi Liston (Diptera: Culicidae)
Entomological Research 39 (1), 78-83
Abstract: Vector control is a serious concern in developing countries. Over the past two decades, phytochemicals have received progressively more attention as insecticide alternatives, and they have recently become the focus in the concept of integrated vector control. alpha-Amyrin acetate, the n-hexane fraction of acetone extract from the leaves of Catharanthus roseus, was evaluated for its larvicidal, pupicidal and fecundity effects as well as insect growth regulator activity against the malaria vector Anopheles stephensi Liston. The highest concentration of 1 p.p.m. produced 100% mortality in first to second instars and 94% mortality in third and fourth instars. In addition, the duration of larval instars and the total developmental time were prolonged, while female longevity and fecundity were markedly decreased. The suppression of pupation and adult emergence was probably due to its action similar to juvenile hormone analogs in combination with growth regulator activity and toxicity, which reduced the overall performance of the malaria vector An. stephensi.
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Link to article at publishers website
Database assignments for author(s): Kuppusamy Chenniappan, Kadarkarai Murugan

Research topic(s) for pests/diseases/weeds:
control - general

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Anopheles stephensi		India