期刊名称：Annals of Agricultural and Environmental Medicine
印刷版ISSN：1232-1966
电子版ISSN：1898-2263
出版年度：2010
卷号：17
期号：01
页码：49-49
出版社：Institute of Agricultural Medicine in Lublin
摘要：Abstract: This study aims at an integrated vector management (IVM) concept of implementing
biological control agents against vector mosquito larvae as a cost-effective
and scalable control strategy. In the fi rst step, the mosquito species composition fauna
of southern Benin was studied using standard entomological procedures in natural and
man-made habitats. Altogether, 24 species belonging to 6 genera of mosquitoes Aedes,
Anopheles, Culex, Mansonia, Uranotaenia, Ficalbia were recorded. Five species, Cx.
thalassius, Cx. nebulosus, Cx. perfuscus, Cx. pocilipes and Fi. mediolineata are described
the fi rst time for Benin. The local mosquito species showed high susceptibility to a Bacillus
sphaericus formulation (VectoLex® WDG) in a standardized fi eld test. A dosage of
1 g/m2 was effective to achieve 100% mortality rate for Cx. quinquefasciatus late instar
larvae in a sewage habitat, with a residual effect of up to 7 days. After more than 1 year of
baseline data collection, operational larviciding with B. thuringiensis var. israelensis and
B. sphaericus was commenced in 2006 in selected areas. Microbial insecticides products
for larval control show great potential within IVM programmes and may augment control
efforts against adult insects, such as the use of insecticide-treated bed nets or indoor wall
spraying in many parts of Africa.
