LARVICIDAL EFFECTS OF EUCALYPTUS CAMALDULENSIS LEAVES EXTRACT ON CULEX QUINQUEFACIATUS LARVAE

Abdullahi Wada and Kiran Singh*

ABSTRACT

Mosquitoes have worldwide distribution and adapted to tropical and
sub-tropical regions of the world. They are vector for variety of
infectious diseases affecting millions of people per year, particularly in
Sub-Saharan Africa. In the present study, larvicidal efficacy of
Eucalyptus camaldulensis was tested against Culex quinquefaciatus.
The most effective concentration is 100 percent extract with 100%
mortality in 12 hours of exposure, while least effective concentration
was 30% extract with 0% mortality in 12 hours of exposure until 24 hours of exposure with
about 93% mortality. In all the treatment, mortality increased with increased exposure period
of time. Treatments were significantly different (P < 0.05) when compared in conformity to
the controls. The findings therefore suggest that Eucalyptus camaldulensis extracts have
potential in the control of the mosquito commonly known as tropical house mosquito.

Keywords: Culex quinquefaciatus, Mosquitoes, Diseases transmitted by mosquitoes, Malaria, Plant pesticides, Eucalyptus camaldulensis etc.