Aedes biscaynesis is the latest mosquito to invade Florida The Aedes is native to the Bahamas islands discovered by Spielman and Weyer in 1965, then a species of Aedes with a distinct subgenus (Howardina) bahamensis Berlin was published the first time in Florida in October 1986. They were found in Dade and Broward counties in South Florida and the first time this species and the subgenus, Howardina of Aedes was recorded in the United States. It is a possible transmitter of St. Louis encephalitis virus. Aedes biscaynesis is the newest member to make the list of 9 other aedes species now found in Florida
Control will include an integrated approach including removal of water sources with ATSB, IGR, Pyrethrids, Biologicals, Natural oils. Aedes biscaynesis is also related to
aedes agypti aedes albopictus,
aedes infirmatus,
aedes sollicitans and
aedes fulvus, aedes taeniorhynchus, aedes tormentor, aedes triseriatus, aedes vexans.
Distribution of Aedes biscaynesis
It is distributed in the tropics like the rest of the family. Currently,
the state of Aedes is located in southern Florida, in southern Dade and Broward counties, in both urban and rural areas and in the Everglades. It can be found in association with Ae. aegypti.
Bitting of Aedes biscaynesis
Ae. biscaneysis has a predilection for biting humans, usually
thy remain inactive during the day until 1 or 2 hours before sunset, continuing
its activity at night.
Habitat of the Aedes biscaynesis mosquito
It has been shown that Ae. biscaneysis is a
peridomestic mosquito, however, it has been observed in poorly developed
commercial, industrial and rural areas, which focus on water accumulations,
such as oil barrels, cemetery vases, buckets, cans, clogged rain gutters,
ornamental ponds, drums, pet water containers, birdbaths and natural activities
such as tree holes, rocks and natural water wells.
Feeding of Aedes biscaynesis
These are domestic and wild animals such as cats,
dogs, squirrels, deer, among other mammals, also includes birds, but with an
important predilection for humans. The Ae. the female biscaneysis has an
important characteristic and is autogenous, it has the capacity to carry out
its first gonotrophic cycle of feeding vertebrate blood, a trait that allows it
to depend less on the sites where the hosts are for food.
Life cycle of the Aedes biscaynesis mosquito
The complete cycle from egg to adult is aquatic and
under optimal conditions (25 ° C), it can be completed in approximately 20
days.
Adults Aedes biscaynesis
The adults measure from 3 to 6 mm, and are easily
recognizable with a prominent median fringe of a flattened silver-white
flattened scale that lengthens and rises between the antennae; the lower part
is reddish brown or black, also the lines of golden scales characteristic.
Eggs of Aedes biscaynesis
The females after four or five days after feeding on
blood lay their eggs individually just above the surface of the water.
Larvae Aedes biscaynesis
The history of life, the development of temperature,
the passage through 4 stages and the energy of the matter and the particles
that are in the water; In this case, plots of thorns are found in the dorsal
area, these tufts and spines are present in Ae. biscaneysis but not in Ae.
Aegypti.
Pupae Aedes biscaynesis
The development of information occurs in two days.
Aedes larvae and pupae are some of those found in discarded tires, both in
shaded sites or not.
Associated diseases with Aedes biscaynesis
The Ae has not been shown like a vector of viral
diseases, has been administered to mosquitoes by chikungunya intravenous virus
and dengue, getting negative results, the titles did not persist and the virus
was not replicated. Has been demonstrated its possible participation in the
transmission of St. Louis encephalitis virus (SLE)
Control of Aedes biscaynesis
Control is fundamentally based on reducing and
eliminating breeding habitat, larvae development sites, treatments with
larvicides and adulticides. Treatment of stagnant water with microbial
larvicides. Introduction of natural predators. Decrease of human-vector
contact.
Recommend the use of protection with appropriate
clothing to avoid mosquitoes bites, wear long sleeves and insect repellent such
as DEET to reduce exposure to bites.
ATSB Atractant Sugar Baits
Biological larvicides
includes products containing Bacillus thuringiensis var. israelensis, spinosad,
beauveria bassiana strain
gha
Insect growth regulators Juvenile
hormone analogs (S-Methoprene, pyriproxyfen)
chitin synthesis inhibitors
(Novaluron).
Use of microencapsulated
pyrethroids Deltametrhin, lambda-Cyhalothrin, Esfenvalerate, beta-Cyfluthrin.