The Backyard Bane: How Private Mosquito Spraying is Fueling Resistance A new study from North Carolina State University reveals that private mosquito spraying in the US may be inadvertently fueling the very problem it's meant to solve.
By repeatedly exposing mosquito populations to pyrethroids, households are creating a selective pressure that favors resistant individuals, leading to widespread resistance across 84% of sampled blocks.
The Asian tiger mosquito is primarily responsible for this trend. Native to Asia, this invasive species has spread rapidly across the eastern US, breeding in even small containers and thriving in urban environments.