Biology, Surveillance and Control of Mosquito Vectors

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Figure 4.10: a) Ovitap used to collect mosquito eggs and b) CDC miniature light trap (Fay

prince).

mosquitos rather than a light bulb (Figure 4.10 b). The trap was designed for mosquito

abatement operations and arbovirus survey purposes (Hock 2004). These traps are com-

monly suspended from tree limbs that hang above the ground and are powered by a battery.

Traps attract mosquitos by a light bulb and CO2 that is emitted from the dry ice in a cooler.

When the mosquitos get close to the light they are pulled into the container by a small

electric fan where they are captured for analysis (Hock 2004).

4.13.5

Precaution during human landing catch

During the human landing catch, there should be some awareness about the mosquito

catching with this method and the time that the mosquito must be allowed to bite. As a

possibility of the infectious from an infected mosquito, when it alight and bite to the leg,

arm or body, the time that mosquito must be allowed to bite must be as shorter as possible.

The mosquito must not be allowed to stay long to the biting site of our body, it must not

be allowed to manage to bite or to bite and stick with its proboscis to our skin. As shorter

the time the mosquito rest in our body, as lower the possibility for the mosquito to bite

and the possibility of an infectious if the mosquito is infected with any kind of viruses or

other pathogen agents. Persons whom apply this method should be very careful from the

undetectable mosquito biting and the time that mosquito must stay in their arms, legs or

body surface or skin during catching of them.

4.14

MOSQUITO PRESERVATION, LABELING AND TRANSPORTATION

4.14.1

Preservation

After the collection of the mosquito specimens with the HLC method described above,

they should be put into small vials covered with a small cotton pad. At the bottom of

each vial, a small piece of wet tissue should be placed, in order to keep the mosquito

specimens alive during the preservation and the transportation to the lab. The wet piece

of tissue can provide such humidity, as to keep the specimens alive until the lab. This

is because the living specimens can be easily identified. Many of the bristles, hairs and

bands can better be distinguished in the living specimen than in the dead one. This is the