|Mosquito populations at Fort McCoy have not recorded
significant gains even with heavy rains over the past several weeks, but
installation Entomology/Pest Management staff still encourage members in
the community to remain vigilant.
Harley Sampson Jr. checks for
mosquitoes in a drainage ditch in the 1600 block. Members of the
installation community are encouraged to take precautions to
combat threats of the insects.
Photo by Rob Schuette
David A. Olson and Harley Sampson Jr., environmental technicians for
the Fort McCoy Entomology/Pest Management Office, said the biggest
threat of mosquitoes exists in the usual damp areas, such as bodies of
water, low-lying areas, forested areas, or drainage ditches. Olson and
Sampson are contractors for the Directorate of Public Works for Joint
“Generally, you need sustained rains that stay around for about two
weeks,” Sampson said. “That gives the mosquitoes a chance to develop
from the egg to larva to the adult stage. Although the rains have been
heavy, the water has been draining into the ground within two weeks, so
we haven’t had a big problem with mosquitoes.”
People can help combat any residual problems by taking the proper
precautions and ensuring they don’t create any unintentional water
havens where mosquitoes can breed and multiply, he said.
Mosquitoes generally are at their peak points outdoors at dawn and dusk.
Olson said wearing long-sleeves and pants while outdoors or in field
areas and applying insect repellent, such as Permethrin on clothing and
DEET on exposed skin, should help protect personnel from mosquitoes, and
wood and deer ticks and the diseases they may help spread.
Receptacles or containers that could hold water for two weeks or more
also should not be left unattended, he said. Potential unintended
containers may include, but are not limited to, tires, boats, wading
pools, bird baths, tarps, buckets, cans or plastic cartons/bottles, etc.
“If you have something like this, the best defense is to check it and
empty it if it has stagnant water,” Olson said.
To report areas/sources of stagnant water, or to get more information
about mosquito control at Fort McCoy, call the Entomology/Pest Control
Office at 608-388-2557.