2013.02.14-Helicopter Treatment for Winter Salt Marsh Mosquitoes
Published on: 1/30/2014 2:30 PM
JOSÉ, CALIF. - Thursday, February 14, 2013. The Santa Clara County
Vector Control District (SCCVCD) reports that the operations to control
for the breeding of Salt Marsh Mosquitoes in the Alviso Marsh, Smith
Yard Marsh, New Chicago Marsh, and Zanker Marsh were completed today at
The aerial treatment was carried to minimize the number of "winter salt marsh mosquito” (Aedes squamiger)
and reduce the risk of mosquito bites to residents in the surrounding
communities. Post treatment samples will be collected to evaluate the
effectiveness of this aerial larvicide treatment.
Aedes squamiger lays its eggs in the moist soil in late spring and early summer. These eggs
can lay dormant for many years, even after repeated flooding. High
tides and seasonal rains, together with the short days and cooler
temperatures of winter, cause the eggs to hatch as early as November.
Although this species has not yet been shown to transmit West Nile
Virus, it is known to bite viciously during the day and can fly over 20
miles from its breeding grounds to feed on humans and other mammals.
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