Tiger mosquito prevention: eliminating stagnant water to stop disease spread

The tiger mosquito (Aedes albopictus), which can transmit diseases such as dengue, chikungunya, and Zika, is increasingly established in regions like France. Due to warmer summers and milder winters, these mosquitoes thrive in heat and humidity, with breeding cycles beginning as early as April.

To prevent proliferation, it is critical to eliminate stagnant water within 24 to 48 hours following rain or storms. A single female can deposit between 50 and 200 eggs in just a few centiliters of water. These eggs can develop into biting adults in as little as 5 to 10 days.

Common breeding sites (larval habitats) include plant saucers, watering cans, buckets, wheelbarrows, and discarded toys. Other overlooked areas include clogged gutters, holes in lawns, hollow tree stumps, rainwater collectors, and pockets of water on pool covers or tarpaulins. Experts recommend emptying or overturning containers, covering water tanks, and maintaining gutters to break the egg-larva-adult cycle.