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Mosquito Swarms Plague SW Florida: Rain Delay Fuels Outbreak
18 Jul
Summary
- Salt marsh mosquitoes are active longer due to delayed rainy season.
- These mosquitoes can fly up to 60 miles, swarming populated areas.
- Currently, no mosquito-borne diseases like Zika have been reported.

Southwest Florida is currently battling significant mosquito swarms, an unusual situation attributed to the delayed start of the rainy season. Salt marsh mosquitoes, normally active from spring king tides through early July, are persisting much later than usual. These formidable insects are vicious day-biters and are capable of flying 40 to 60 miles on the wind, bringing them into populated areas far from their breeding grounds.
Mosquito control districts in Lee and Collier counties are working to manage the situation. While these salt marsh mosquitoes can carry heartworm to pets, they do not transmit human diseases like Zika or dengue. These dangerous diseases are typically carried by freshwater mosquitoes that emerge with the rainy season. As of the current date, no mosquito-borne illnesses have been identified in Southwest Florida, offering some relief amidst the buzzing nuisance.