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Larvicidal activity of endocarp and seed crude extracts of Dracaena loureiri Gagnep against Aedes aegypti (L.) mosquito
Article in Chinese | WPRIM | ID: wpr-511488
Responsible library: WPRO
ABSTRACT

Objective:

To evaluate the larvicidal activity of the ethanolic and aqueous extracts of the endocarp and seeds of Dracaena loureiri (D. loureiri) against the dengue mosquito vector, Aedes aegypti.

Methods:

Bioassays were performed by exposing late third-stage to early fourth-stage larvae of Aedes aegypti to various concentrations of the extracts from D. loureiri. The larval mortality was observed after 24-and 48-h exposure.

Results:

The larvicidal bioassay in this study demonstrated that the ethanolic endocarp extract was the most effective with the LC50 value of 84.00 mg/L after 24 h exposure and< 50 mg/L after 48 h exposure. Extracts from the other parts of the plant were signifi-cantly less effective as a larvicide.

Conclusions:

The ethanolic endocarp extract of D. loureiri demonstrated effective lar-vicidal activity. It is an alternative source for developing a novel larvicide for controlling this mosquito species.

Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Asian Pacific Journal of Tropical Biomedicine Year: 2017 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Asian Pacific Journal of Tropical Biomedicine Year: 2017 Type: Article