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Tiger mosquito is spreading in Spain

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  • Tiger mosquito is spreading in Spain

    El mosquito tigre se expande y llega ya hasta la Costa Brava

    • El primer foco fue hallado en L'Escala pero los técnicos pudieron erradicarlo

    • Los expertos siguen con las tareas de extinción de la colonia detectada en Roses


    machinetranslation

    The tiger mosquito expands and reaches up and the Costa Brava

    • The first outbreak was found in Escala but technicians were able to eradicate it

    • The experts continue with the task of extinguishing the colony detected in Roses

    The mosquito tigre has already reached the Girona region. Escala and Roses (Alt Empord&#224 were the first two towns in the province where the Servei Control Mosquits of Roses Badia i Baix Ter has located and identified larvae of this insect invader, known by the community scientific Aedes albopictus.

    In order to detect the presence of mosquitoes tigre, the service has installed more than 250 traps along the coastline gerundense.

    He appeared on August 22 when some mosquito eggs in one of the traps, located near the campsite Illa Mateu of Cala Montgó - L 'scale -. After hatching, technicians found that the larvae belonged to the annoying insect.
    Since then, activated the emergency protocol to control the outbreak and prevent the proliferation kind.

    The protocol is to analyse the larvae, establish a perimeter control and begin spraying to eliminate their populations. In the case of Escala, the perimeter covered the entire neighborhood Montgó and its periphery. Technicians also sprayed with insecticide private gardens to eliminate potential mosquito colonies adult and larval traps also installed to control the outbreak.
    "We neutralized by the outbreak," said Eduard Marquis, director of the service.

    The expert also noted that in the case of the mosquito tigre, it is imperative to "go ahead" and spray before the population proliferate. "Early detection works and that's good news," he added.

    A second outbreak

    Despite the good results, a few days later one second outbreak was detected in other population in the same region. Specifically, one of the traps located in Santa Margarida, in Roses, service technicians found 26 eggs of the insect, which experts consider placing "small" but that, according to Marquis, "must be controlled."

    A work of fumigation to eliminate the insect population joins the campaign door to door made by the Service Control Mosquits. The leaders considered "essential" to make pedagogy among the population so that the neighbors aware of the steps to take to avoid environmental conditions that facilitate mosquito breeding tigre.

    Such measures are based primarily to prevent the pond water, habitat for the larvae. Containers, pipes and holes in the ground are corners where the water is ponding and may end up hosting a colony of unwanted mosquitoes tigre.

    Experts recommend empty containers at least once a week, so as to interrupt the time needed to reach adult mosquitoes from making, and also renew ponds and pools, including removable.



    Some more reports:




  • #2
    Re: Tiger mosquito is spreading in Spain

    Some Background

    Tiger mosquitoes and the history of yellow fever and dengue in Spain

    18 December 2005 update


    Tiger mosquito reaches Altafulla in Tarragona

    16 September 2005

    Tiger Mosquito detected in Barcelona. The Catalan Health Authority has detected the presence of the Tiger Mosquito in Can Bar? in Barcelona, after several people complained of painful mosuito bites. Leaflets are to be distributed throughout the city.
    (El Pais)

    21 February 2005

    According to scientists, the nascent Sant Cugat tiger mosquito colony seems to be here to stay. Since the mosquito's arrival in Sant Cugat near Barcelona in August 2004, it has spread out homogenously across the whole municipality with ?very high' population densities comparable with those in Italy, despite a campaign to reduce potential breeding sites (plant pot saucers, garden fountains, hollow tree trunks, etc- up to 400 larva can hatch in one of these sources).

    The tiger mosquito has now been detected on the borders of Sant Cugat, moving into the adjacent municipalities of Barcelona , Sant Quirze, Rub?, El Papiol, Molins de Rei and Cerdanyola, the latter being the second Spanish town affected. Concerns, no doubt with a tad of hysteria, are being raised that the tigers could affect the economy and tourism.

    There are instances of families deciding to move out of the area, fleeing from their painful bite. Whatever the case, the mosquito is clearly going to continue to expand. Scientists predict its arrival to Valencian coasts at some time this year, and it is probably only a matter of time before it is present along the entire Mediterrenean strip. Its speed and virulence will depend on how effective government action is. In Rome local government spends 3.5 million a year just to keep the population under check. It is, it would seem, impossible to erradicate.

    September 17, 2004


    The first colony of tiger mosquitoes ( Aedes Albopictus ? mosquito tigre ) has finally been detected in Spain, in Sant Cugat de Valles near Barcelona. Mosquito experts have been expecting the insect to reach here for some time. It has been spreading across Europe and reached Italy and France in 1990. The television and the press have reported dozens of people complaining of ?intense? painful bites.

    Robert Eritja an entomologist with the Baix Llobregat Control Service explained that the insect poses no public health risk. He added that the tiger mosquito is extremely aggressive, attacks by day and lives in gardens where they breed in stagnant pools of water. It cannot be eradicated but it can be controlled?.

    There are as yet no known cases in Europe of vector-spread diseases from a tiger mosquito. However, although at this moment they may not be harmful, there is cause for concern. The tiger mosquito can be a vector for a whole litany of major diseases including dengue and yellow fever and West Nile. Aedes albopictus began to spread out from its Asian homeland in the 1970s, above all thanks to the sea transport of tyres.

    Moreover, the parent species Aedes aegypti , present as a result of previous ship-borne invasions, was the vector which caused severe outbreaks of dengue and yellow fever several centuries ago throughout the Mediterranean, though it was later eradicated. Both Aedes albopictus and Aedes aegypti share a similar habitat type and bionomics* and bear the same vector diseases.

    The first outbreak of yellow fever in Spain was in 1701. It would remain an endemic killer for 180 years, particularly in the southern ports. A single chain of yellow fever outbreaks between 1800 and 1803 claimed more than 60,000 lives in Cadiz, Seville and Jerez. Barcelona was severely hit between 1822 and 1824 with 80,000 people infected, of which 20,000 died. 300,000 people are believed to have died from yellow fever in Spain during the 19th century.

    Epidemics of dengue (incidentally, the word is Spanish in origin) in Spain are not as well documented as Yellow Fever. The first known outbreak was in Cadiz in 1778. The mortality was so low that the disease was popularly known as ? La Piadosa' (?the compassionate one'). The last documented case of Aedes aegypti was collected in Barcelona centre in 1939 (Margalef 1943, who described the species as ?very common?).

    It continued to be considered common by Spanish researchers well into the 1950's. The reasons for its disappearance from almost the whole Mediterranean are unclear. Sanitation and better ships are cited as factors. It would seem that wetland drainage, so effective against malarial-vector anopheline mosquitoes had little effect on this urban dweller.

    Let me make one thing clear. One thing is the mosquito and another quite different thing the disease. As long as a Spanish mosquito does not itself become infected by a disease, it obviously cannot pass it on to a human being. The infection zones of neither dengue or yellow fever are currently anywhere near the Iberian Peninsula.

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    • #3
      Re: Tiger mosquito is spreading in Spain

      An Article probably from 2003 or 2004

      WORLDWIDE INVASION OF VECTOR MOSQUITOES: PRESENT
      EUROPEAN DISTRIBUTION AND CHALLENGES FOR SPAIN


      ABSTRACT

      An Asiatic mosquito species, Aedes albopictus, started a worldwide
      spreading in the 1970s thanks to maritime transportation of tires and other
      goods, leading to colonization of many areas of the world.

      This species is a vector of major human diseases such as Dengue, Yellow
      Fever and West Nile. In Europe, it has established itself in Albania and Italy
      and has been detected in other countries such as France; no records exist
      for Spain as yet.

      Colonization by Aedes albopictus is a major public health concern
      considering that West Nile and several other viruses are known to
      sporadically circulate in the Mediterranean. Additionally, the parent species
      Aedes aegypti was the vector causing severe outbreaks of Dengue and
      Yellow Fever two centuries ago. Whereas Ae.aegypti was also introduced, it
      resulted at some time eradicated from Spain.

      Both mosquitoes shared habitat types, diseases transmitted and many
      bionomic data. This article contains a review of the present Ae.albopictus
      distribution range worldwide, and discusses the likelyhood of an establishment
      in Spain in view of climatological and geographical data.

      more:

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