Cold fall weather hampers mosquito breeding and survival rates – WISH-TV | Indianapolis News | Indiana weather

INDIANAPOLIS (WISH) – As fall approaches in Indiana and temperatures begin to drop, an unexpected ally is emerging in the war against mosquitoes.

Recent studies have revealed that cold weather conditions play an important role in slowing down and even eliminating mosquito populations. This new understanding may have profound implications for controlling the spread of mosquito-borne diseases.

Mosquitoes are known for their role in transmitting diseases such as malaria, dengue fever and Zika virus, and thrive in warm, humid environments. However, as temperatures drop, these resilient pests face many challenges that affect their reproduction and overall survival rates.

One critical factor affected by cold temperatures is mosquito breeding. Female mosquitoes lay their eggs in standing water sources, such as swimming pools, ponds, and rain-filled containers. Warmer temperatures facilitate faster growth and mosquito larvae. However, when temperatures drop, the growth process slows significantly, increasing the time it takes for larvae to reach adulthood. Consequently, mosquitoes have less opportunity to reproduce, hindering their ability to maintain their numbers.

Moreover, lower temperatures also affect the metabolic levels and activity of mosquitoes. Cold weather makes mosquitoes less active, reducing the frequency of their feeding. Since female mosquitoes require a blood meal to lay eggs, decreased feeding activity can lead to decreased egg production and decreased survival rates for the next generation.

In addition, the lifespan of adult mosquitoes is greatly affected by cold temperatures. Mosquitoes have a limited lifespan, usually ranging from a few weeks to a few months. However, when they are exposed to cold conditions, their metabolism slows down, and their ability to survive is reduced. As a result, the overall mosquito population is declining as individuals succumb to a harsher environment.

The number to overcome is 50 degrees. Temperatures near 50 degrees will temporarily slow down mosquitoes but temperatures below 50 degrees are where mosquitoes begin to die. Hopefully, with nighttime temperatures in the 40s, Hoosiers will notice a big difference in the mosquito numbers outside.