Life cycle of Aedes mosquito and prevention

Life cycle of Aedes mosquito

A comparison between the two species of mosquito are given below;

• EGGS

Female Aedes lay eggs, after having blood meal, in clean standing water. These eggs are black in colour, oblong in shape and are laid singly. Their number ranges from 50-300, depending upon the humidity and temperature.

Eggs of female Anopheles mosquito are oval in shape, laid singly on the surface of water.

• Larvae

In Aedes, larvae come out of the eggs after an incubation of 2-7 days which having vertically with siphon or breathing tube touching water surface. They move actively from top to bottom and feed on vegetation and larvae of other insects.

In Anopheles, the larvae rest parallel to the surface of water. They don’t have breathing tube, but have pores on body for breathing.

• Pupa

In Aedes the larva feeds, grow rapidly and casts its skin four times and become pupa. The pupa is comma shaped and elongated narrow, curved, segmented abdomen.

• Adult

After one or two days, outer converting of the pupa splits in the mid dorsal line and the young mosquito emerges, which after drying its wings flies away. Adult rest with body parallel.it usually bites at dawn and dusk.

Breeding sites

Aedes mosquitoes breed in clean water which may accumulates in natural or artificially. The water is in the rest form. It may be tube, tires and in water cooler.

Preventive and control

At personal level

By wearing clothes that fully cover the skin

Use mosquito net and spray

Apply mosquito repellents

At household level

Controlled spray in every part of house, under furniture and dark corner.

At community level

The surroundings of house should be kept clean. Make sure there is no standing clean water in the house or in the society. Sarpy the mosquito reseller every year in the society.

Biological control

The use of chemicals effects the environment

Many birds prey on mosquitoes.

Wall lizards, jumping spider destroy many mosquitoes

Fish are natural redactor of mosquito larvae in ponds

larvae of other insect also feed on larvae of mosquito.

Patient management

Complete ret should be advise to the patient.

Family doctor should be consulted, through is no specific medication.

Initial paracetamol should be taken to control fever. Any person who is having fever for 3 or more days should be consult a doctor.

If a patient feels worse he or she should be immediately shifted to the hospital.