losquito Control - Wing Beats - Florida Mosquito Control Association

of the Florida :\losquito Control Association
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An Official Publication of the
Volume 16, Number 1 Spring 2005

On August 13, 2004 Hurricane
Charley, a category 4 storm, devastated
Charlotte County. The
County suffered tremendously,
with 9 out of 1 0 structures sustaining
some form of damage.
The following discussion describes
most severely damaged
structures and problems with the
pieces and parts ofthe structures
that were thrown all over our
county. We can only hope that the
lessons we are learning will help
all of you be better prepared for
any future storm.
In the weeks after the storm, we
have made some discoveries
from both personal and professional
experience. Windows,
screens, roofs, doors, and walls
in most damaged structures were
Figure 3
Daaprs
a Nat1md Disaster
compromised to the point
that rain, from the hurricane
and the normal afternoon
thunder storms, was entering
these structures and
starting to breed mosquitoes
(figure 1 ). My personal experience
was in my own residence.
While salvaging what
we could, it was observed
that every surface that could
hold w ater was breeding
mosquitoes. We started to
look hard at other structures
while at work and found the
same thing was going on all
around the county. It didn't matter
what the surface was; cups,
cabinets, pots and pans, toilets,
tile floors, children's toys
in closets, tubs, washing machines,
dryers, tool boxes in ga-
Figure 1
Figure 2
rages, oil catch cans, and tarps that
were put over computers in homes,
breeding was going on everywhere
(figure 2).
The places most devastated by the
hurricane were mobile home parks.
Some homes were completely gone
while others were damaged to the
point where they could no longer be
inhabited (figure 3). Most of these
homes could not be entered due to
the damage (some of it hidden) to
the floors walls and roofs. It was,
therefore, impossible to get an accurate
account of larva breeding or
to provide barrier treatment. We also
'U'iH-9 r?e

Figure 4
found most mobile homes to
have some sort of storage
sheds that contained items
which can hold water. One
such shed had an old beer
can collection that would
most likely be breeding larvae
with the next rain (figure
4).
In some areas of the county
power could not be restored
to the homes that were damaged.
A lot of these homes
have pools and, with no
power, they cannot function
properly (figure 5). We are
in the process of finding all
ofthe non-functioning pools
(in cooperation with Code Compliance),
and treating them wherever
it is safe to do so. We have
found that 0.51bs. of Altosida pellets
will treat a standard pool for
30 days.
We have also found that a lot of
debris is lying in the woods and
creating another source for mosquitoes
to breed. Examples of
these are: parts of a roof valley
still intact and lying in a way that
it could hold water, rain gutters,
garbage cans, and 5 gallon buckets.
We will have our work cut
out for us come spring rainy season
as this debris will be covered
over by new growth where trees
6 Spring2005
were blown over there are
very large holes in the ground
that are holding water, creating
more potential breeding
sites. It has also been
found that, after the county
stopped curbside pick-up of
storm related debris, illegal
dumping has started to increase
(figure 6).
After taking several samples
back to our lab we found that
Figure 5
we were dealing primarily with
Culex nigripalpus, Cx.
quinqefasciatus, Cx. erraticus
and Aedes a/bopictus. Our main
concern is that Cx. nigripalpus is
a vector of West Nile (WNV) and
St. Louis Encephalitis (SLE) viruses.
With many structures that
were compromised in Hurricane
Charley further damaged by Hurricanes
Frances and Jeanne, we
could be looking at a major health
problem if we cannot get into
Figure 6
these structures
and treat the
breeding or remove
the standing
water. Now
we will be looking
at containerbreeding
species
moving into the
areas where we
used to deal with
just salt marsh
mosquitoes.
As a county we
are now looking
at what we could
do to be better
prepared for an

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Spring 2005
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sample still did not truly represent
the smaller droplet sizes even using
a faster rotational speed and smaller
sampler size. The correction D 2 (n x
d) however produced a Dv 0.5 comparable
to that of the laser systems.
Results from the high pressure
impinger nozzle are presented as
Dv 0.1 , Dv 0.5 , and Dv 0.9. The D 3 again
severely over estimated the droplet
size spectrum again. For both nozzle
systems the D calculation along with
5.6 m/s, 3 mm sampler returned
droplet size distributions very close
to that of the laser measurements
(Table 1). Figure 2 shows the cumulative
volume fraction for the
AU400 and the PJ12 nozzles using
the new sampler.
As mentioned previously the D 3 calculation
for cumulative volume fraction
provided a significant over estimation
of the droplet size distribution.
The new nozzle systems investigated
here produce a much smaller
and narrower spectrum compared to
the old flat fan system. The narrower
spectrum (

RECOGNIZE THE INDIVIDUALS WHO HAVE MADE OUTSTANDING
CONTRIBUTIONS TO MOSQUITO CONTROL:
NOMINATE THEM FOR THE FMCA AWARDS!
Any Florida Mosquito Control Association member in good standing may nominate a candidate for any award
by submitting supporting information to the Awards Committee, to include a short biographical sketch of the nominee,
emphasizing those accomplishments deemed worthy of the award. There is no official nomination form. Endorsements
and written support from other colleagues are encouraged.
All submissions will be acknowledged. Nominations must be received by July 29, 2005.
The Maurice W Provost Memorial Award - established as a memorial to the first director of the Florida Medical
Entomology Laboratory, honors persons who have made outstanding contributions to mosquito control and/or
biting fly biology in Florida. Recipients have been instrumental in developing sound management and operational
methods to reduce pesticide levels and to minimize habitat alteration while reducing mosquito populations; in
increasing our knowledge of mosquitoes and other biting insects and their habitats; and in educating students and
the general public about the importance of various environmental issues facing the citizens in protecting the fauna
and flora in Florida.
The Joseph Y Porter Distinguished Achievement Award - recognizes the first president of the Florida Anti-
Mosquito Association and first State health officer of Florida, and recognizes scientists who have made significant
contributions to entomology, with special emphasis on the abatement of arthropods of public health importance.
The recipient must have meritoriously contributed to the advancement of entomology research in the field of mosquito
and other biting arthropod control in the State of Florida.
The Fred Stutz Memorial Award - honors the former director of Dade County Mosquito Control, and was intended
to recognize an outstanding contribution to mosquito control by development of procedures that increase effectiveness
in mosquito and other arthropod control, or the design and manufacture of equipment that helped revolutionize
the control of mosquitoes and other arthropods of public health importance. Supporting information should also
include an evaluation and appraisal of the nominee’s accomplishments.
The Sherrie Yarberry Award - was named for a dedicated employee of Jacksonville Mosquito Control, and was
intended to recognize continued outstanding contributions to operational program activities by veteran, non-administrative
personnel of Florida mosquito control related agencies. The recipient must demonstrate exemplary performance
resulting in enhanced unit efficiency or public recognition of excellence of the parent organization. Supporting
information from senior mosquito control administrators and supervisors should include an evaluation and
appraisal of the nominee’s accomplishments.
The FMCA Merit Award - is intended to recognize the outstanding individual contribution to promoting control of
disease-transmitting and pestiferous mosquitoes or other arthropods of public health importance, for scientific
advancement of the discipline, or for developing or extending the public interest in the control of such mosquitoes or
other arthropods. The recipient should represent those characteristics generally associated with responsible leadership,
good citizenship and personal integrity. The recipient need not be a member of the Association.
James W Robinson Memorial Award - This award was established in 2005 as a memorial to Jim Robinson,
Director of Pasco County Mosquito Control District, renown for his innovative development of new equipment and
adoption of new technologies. This award is intended to recognize innovation and ingenuity in optimizing the safe
and efficient operations of Florida public health pest control programs. The recipient must have contributed an
outstanding improvement to equipment or techniques used by a non-commercial mosquito control related agency.
This advancement may not be proprietary in nature, and must be freely shared with the Association. Supporting
information should include an evaluation and appraisal of the nominee’s accomplishments. The recipient of the
James W Robinson Memorial Award will receive $500 cash, a commemorative certificate, in addition to expenses to
attend the Annual Fall Meeting.
Please submit all inquiries and nomination documents to: Stephen L Sickerman
DACS Bureau of Entomology & Pest Control, 3920 Frankford Avenue, Panama City, FL 32405-1953
phone 850-872-4250 ˜ fax 850-872-4271 ˜ e-mail
26 Spring 2005 Wing Beats

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