4.7 Article

Insecticidal activities of leaf and twig essential oils from Clausena excavata against Aedes aegypti and Aedes albopictus larvae

Journal

PEST MANAGEMENT SCIENCE
Volume 65, Issue 3, Pages 339-343

Publisher

JOHN WILEY & SONS LTD
DOI: 10.1002/ps.1693

Keywords

Clausena excavata; leaf; essential oil; Aedes aegypti; Aedes albopictus

Funding

  1. Council of Agriculture (COA) of the Executive Yuan, Taiwan

Ask authors/readers for more resources

BACKGROUND: The current study investigates, for the first time, the mosquito larvicidal activities of leaf and twig essential oils from Clausena excavata Burm. f. and their individual constituents against Aedes aegypti L. and Aedes albopictus Skuse larvae. The yields of essential oils obtained from hydrodistillation were compared, and their constituents were determined by GC-MS analyses. RESULTS: The LC50 values of leaf and twig essential oils against fourth-instar larvae of Ae. aegypti and Ae. albopictus were 37.1-40.1 mu g mL(-1) and 41.1-41.2 mu g mL-1 respectively. This study demonstrated that C. excavata leaf and twig essential oils possess mosquito larvicidal activity, inhibiting the growth of mosquito larvae for both species at a low concentration. In addition, results of larvicidal assays showed that the effective constituents in leaf and twig essential oils were limonene, gamma-terpinene, terpinolene, beta-myrcene, 3-carene and p-cymene. The LC50 values of these constituents against both mosquito larvae were below 50 mu g mL(-1). Among these effective constituents, limonene had the best mosquito larvicidal activity, with LC50 of 19.4 mu g mL(-1) and 15.0 mu g mL(-1) against Ae. aegypti and Ae. albopictus larvae respectively. CONCLUSION: The findings suggested that the essential oils from Clausena excavata leaf and twig and their effective constituents may be explored as a potential natural larvicide. (C) 2008 Society of Chemical Industry

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.7
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available