Archive for 'mosquito'

Dengue Alert: 51,597 Dengue Cases Reported

The Department of Health (DOH) reported 16.43% increase of dengue cases from January 1 to July 14, 2012 compared to the same time period last year (with 44,315 cases). Watch out for more updates from the BUGboard courtesy of the Pest Management Academy of Bio-Tech Environmental Services Philippines, Inc.

Aedes aegypti by Anjo de Batalha

Are you wondering how those pesky mosquitoes find hosts to victimize? Results of flight tunnel studies on the mosquito Aedes aegypti, the vector of dengue fever virus, revealed that carbon dioxide detected as turbulent plume leads to more directed flight upwind by the pest. A plume of this gas that is fluctuating in concentration and mimicking the presence of a live host elicited the best response. Carbon dioxide alone, without host odor, is enough to induce directed flight toward the source. This first encounter with the gas is…

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