Strengthening the Control of Mosquito Vectors in Cabo Verde
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This composition (BR-OVT and Bti) forms a continuous monitoring system, allowing the
trap to remain in the field for months, and works as a good strategy to attract and elimi-
nate mosquitos [27]. Because of a project carried out in the Metropolitan Region of Recife
(RMR), Pernambuco, Brazil, the BR-OVT proved to be able to remove significant amounts
of Cx. quinquefasciatus rafts from the environment [26, 27].
The aim of this study was to evaluate the efficiency of adhesive BR-OVT as a tool for
monitoring the populations of Culex pipiens s.l. and Ae. aegypti in the main urban centers
of the island of Santiago - Cabo Verde.
18.4.2
Material and Methods
Study area: The pilot study was carried out between July and August 2014 in two cities
on the island of Santiago, Cabo Verde: Praia (14o 55 ’ N 23o 30’ W) and Assomada (15o
05’ 45 ” N 23o 40’ 00” W). The country’s capital, is located at sea level and has large urban
agglomerations. Considered like a capital of the island’s interior, the city of Assomada is
predominantly rural, is located at 44 km from the capital and situated on a plateau at 391
m above sea level.
Study tool: Mosquitos were collected using the BR-OVT trap, developed by [27] and
adapted to collect adult mosquitos by [28]. This tool, made up of a black polyethylene box
(13 x 35 x 24 cm), with a central opening (16 x 9 cm) on the upper face and containing,
inside, a black container with a capacity of 4 L. Around this, there is an adhesive edge on
the top face and a substrate (fabric) attached to the edge inside the container. BR-OVT is
installed indoors (Figure ). Experimental approach: For the development of this project,
40 indoors traps were installed, of which 25 in Praia and 15 in Assomada. In each trap,
added an attractive solution of 500 ml of acacia infusion with 3 L of water was added.
Figure 18.4: BR-OVT adhesive trap.