There are more than 75 mosquito species in Florida, individual
counties may have 40 species, fewer than two dozen species throughout
Florida are important enough as pest or vectors to warrant control,
however, and in given locality, this number is usually less than five.
The first step in determining which mosquitoes poses a nuisance, or
is an economic or health-related pest or vector. A nuisance mosquito
bothers people, typically in and around homes or in a recreational area.
One definition of a health related mosquito problem is the ability
of a mosquito to transmit infectious diseases. In Florida, this definition
includes only mosquitoes that spread dog heartworm, St. Louis Encephalitis
and Eastern Equine Encephalitis. However, any mosquito that bites or
annoys people can be considered a health problem, particularly for
individuals that are allergic to mosquito bites or which suffer from
entomophobia, (i.e. A fear of insects).
Habitat/Source
Reduction
Mosquito habitats and ways individuals can protect themselves from
mosquito attack. Source reduction is usually the most effective of the
techniques available and is accomplished by eliminating mosquito breeding
sites.
Containers
This can be a simple as properly discarding old containers which
hold water capable of producing Aedes aegypti, A.e. albopictus or Culex
spp. Containers such as flower pots, cans and tires are excellent habitats
for mosquitoes to breed. A container breeding mosquito problem can be
solved by properly disposing of such items, covering them or tipping them
over to ensure that they do not collect water.
Water
Small man-made ponds, storm water or waste water retention areas
are also excellent breeding habitats, effective control include period
drainage, providing deep water sanctuary for predator / larvivorious fish,
minimizing emergent and standing vegetation and maintaining steep banks.
Swamps
Environmental laws greatly restrict habitat manipulation in these
areas, making permanent control here difficult, which can produce Culex,
Anopheles, and Culiseta species of mosquitoes.
Temporarily
Flooded Locations
Pastures
and agricultural lands are enormous mosquito producers, frequently
generating huge broods of mosquitoes, (Aedes, Psorophora and Culex).
Improved drainage is one effective tool to generate source reduction.
Treatments Provided
Adulticiding
Columbia County provides for spraying the county using various
chemicals to kill adult mosquitoes, and are generally applied using a
truck mounted ULV spray unit.
Larviciding
Columbia County provides for the chemical treatment of larval
mosquitoes (either I-IV Instar) by applying chemicals to roadside ditches,
swales, retention ponds, treatment ponds and small bodies of water,
man-made ponds. Most currently used larvicides, when applied properly, are
efficacious and environmentally safe, both to aquatic animals and humans.
Spraying
Requirements
Florida Statues on mosquito surveillance are concerned only with
the monitoring of adults. According to these statues, before adulticides
can be applied, a monitoring program must detect an increase in the
population above a predetermined baseline. Or by using a techniques known
as Landing Rates, landing rates are determined using this technique
comprises a count of the number of mosquitoes that land on a person in a
given amount of time. This is useful for evaluating activity for day
biting, and container breeding mosquitoes, which are common around homes.
Also used is telephonic service request, which citizens can call the
Mosquito Control Department at 386-752-6050 to log a complaint and request
mosquito control services.
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