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• Above average rainfall throughout the <br />summer, but adult mosquito numbers stayed <br />below average for much of the year. <br />• Main nuisance mosquitoes—Aedes vexans <br />and Coquilletiddia perturbans - remained low. <br />• Mild winter and warm spring meant early <br />detections of deer ticks (February 5t") and <br />mosquito larvae (February 26tn) <br />• Fewer instances of West Nile virus in the <br />District than previous years. Vectors of WNV <br />thrive in hot, dry conditions. <br />• Spring flooding caused surge in black fly <br />numbers, but they remained at tolerable <br />levels through the rest of the summer. <br />Weekly Averages of Human Biting Mosquitoes <br />in Coe 'Naps, 2024 <br />700 <br />600 <br />500 <br />400 <br />300 <br />200 <br />100 — <br />o <br />5114 5al 5/29 614 6111 6118 625 712 719 7116 7123 7130 916 8113 &20 &27 9M 9110 9117 9/24 <br />—e— 2024 —10-year swage <br />I Ne rh ff"ImA <br />■■■II■ir/ <br />�� V <br />METROPOLITAN MOSQUITO COAPdND-W/dFT43 <br />