Mosquitoes on the Move: How Hot Weather Fuels Swarms in Georgia

Recent heat waves and prolonged dry spells have pushed more mosquitoes into the state, raising worries about diseases like West Nile. When rains are scarce, storm drains and underground pipes hold leftover water that becomes perfect spots for mosquito babies to grow. Scientists point out that these containers, which normally get flushed during normal rainstorms, stay stagnant and rich in nutrients—exactly what the larvae need. Georgia’s geography gives it a wide variety of mosquito species, from mountain swamps to coastal marshes. Out of the 63 kinds that live here, only a handful—such as the Southern house mosquito and the Asian tiger mosquito—are known to spread illnesses. These particular species thrive in warmer climates, and as temperatures rise they are moving farther north than before.

People can help cut down the number of breeding sites by checking and emptying any objects that collect water every week. Things like buckets, planters, old tires and birdbaths are common places where mosquitoes lay eggs. Covering water containers with tight lids or fine mesh keeps the insects out, and sealing cracks in septic tanks stops hidden pools from forming. Health officials warn that some mosquitoes can survive long dry periods by keeping their eggs dormant until the next wet season. This means that even a brief rainfall can spark a new wave of insects, so staying vigilant is key. By keeping our surroundings dry and free of standing water, we can reduce the chance of mosquito-borne illnesses spreading in our communities.

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