PJB-2010-304
POTENTIAL OF CITRUS SEED EXTRACTS AGAINST DENGUE FEVER MOSQUITO, AEDES ALBOPICTUS (SKUSE) (CULICIDAE: DIPTERA)
WASEEM AKRAM1*, HAFIZ AZHAR ALI KHAN1, FAISAL HAFEEZ1, HAZRAT BILAL1, YEON KOOK KIM2 and JONG-JIN LEE 2
Abstract
Citrus seeds and peel contain certain compounds with varied level of bitterness. These compounds have been tested against insects and proved to be effective. The present study was therefore carried out to test the citrus seed extracts from 10 varieties against 4th instar larvae of dengue fever mosquito, Aedes albopictus (Skuse). The results indicate that the extracts from rough lemon and lemon were more effective as larvicides with lowest LC50 (119.993 and 137.258 ppm respectively, after 24h of exposure and 108.85 and 119.853 ppm respectively, after 48h of exposure) and LT50 values (2.51 and 4.91h, respectively). Seed extracts from remaining citrus varieties were less active at lower doses; however at higher doses these were biologically active against Ae. albopictus. Our study has suggested that citrus-seed extract are environment friendly and can be used for managing Ae. albopictus larvae.
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