Asian Tiger Mosquitos

The fast approaching spring weather will drive many outdoors, happy to soak up the sun after the cold winter days. But for others, the warm spring air brings with it the impending awakening of the Asian Tiger Mosquito with all the misery that it inflicts. Although it is not yet certain why some people are so badly affected by its bite while others feel only fleeting irritation, those who react badly to it know only too well the sleepless nights accompanied by unbearable itching. A good number of sufferers will even endure severe reaction requiring medical attention.

The Asian Tiger Mosquito is about 2 to 10 millimetres long with a black and white striped body and legs similar to that of a tiger; hence its name. Although this mosquito was originally native to the tropical and subtropical areas of Southeast Asia, it was inadvertently exported to other parts of the world. Its export was mainly attributed to the international transportation of tyres since rainwater which collects inside tyres provides the perfect haven for the survival of this insect. This allowed it to settle in many other parts of the world where it rapidly adapted to different climates, surviving even freezing temperatures, and making it very difficult to eradicate or control.

The online Global Invasive Species Database lists the Asian Tiger Mosquito (Aedes albopictus) as one of the 100 most invasive species in the world. In Malta, the Asian Tiger was first officially recorded in 2010 and it has since become a fixture of our warm weather months.

In temperate zones such as Malta,the mosquito hibernates during the colder months, but its eggs can survive the winter ready to hatch as soon as the weather warms up. The female Asian Tiger likes to lay her eggs near still or stagnant water. So anything that holds water long enough for the eggs to develop will contribute towards the proliferation of the mosquito - even it contains only a few millilitres of water. Provided that it continues to find suitable breeding ground and food, the Asian Tiger can flourish even in areas not normally prone to mosquito infestations.

The male Asian Tiger feeds on plant nectar and does not bite. The female too feeds on plant nectar, but needs blood to develop her eggs. Female Asian Tigers search for food from dawn till dusk, attacking humans, dogs, cats, birds, other domesticated animals and wild mammals. Females track down blood sources by following the scent of carbon dioxide and body chemicals. They will then persistently scout the area until they recognise a good host.

Having located a possible target, the female Asian Tiger will approach its intended victim at ankle level and advance up the body until it obtains access to blood. Because these mosquitos are inherently cautious, they will interrupt their feeding several times if they sense any danger to themselves, and then attack time and again until they are fully engorged. This means that they will either bite the same victim several times in different places, or else bite different victims during each feed. Their easy substitution of one victim for another has contributed towards their success in transmitting disease. Children, young adults and the elderly are particularly at risk, and some of these diseases are life-threatening.

In other parts of the world, the Asian Tiger has been known to transmit dengue fever, encephalitis, yellow fever, West Nile virus, and Chikungunya fever. In 2007, the Asian Tiger Mosquito was responsible for an outbreak of the Chikungunya fever in the Italian Province of Ravenna, with hundreds of affected people.

The Asian Tiger can also be fatal to cats and dogs since it can transmit a parasite that causes heartworm. Research has found that the Asian Tiger is capable of transmitting eastern equine encephalitis, a strain of encephalitis normally found in wild birds that can be transmitted to horses. Both heartworm and eastern equine encephalitis can cross over from animals to humans, so the Asian Tiger is directly responsible for the transmission of diseases between species. If you have an infestation of Asian Tiger Mosquitos, you need to act fast.

Unfortunately, many of the techniques used to keep away the common mosquito are totally ineffective. Ultraviolet light traps fail to attract the Asian Tiger. Sound devices and mobile apps that mimic the sound of the male mosquito do not drive away the female. Mosquito traps are only partially successful. Insecticidal sprays are effective only until the spray dissipates.

If you know that you have a problem with Asian Tiger Mosquitos, your best option is to seek the advice of a professional pest control consultant who will assess your environment and recommend possible solutions. A professional consultant can supply insecticides that will safely treat your gardens and shrub areas. In the meantime, you can take preventive action when you are outdoors, and destroy the places where it can breed.

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