Africanized Honeybees Are Spreading North — What Memphis Homeowners Need to Know
Every few years, a news story about "killer bees" makes the rounds and sends homeowners into a panic. The reality of Africanized honeybees is more nuanced than the headlines suggest — but it's also more serious than the dismissals that follow. Here's what the science actually says, and what it means for the Mid-South.
What Are Africanized Honeybees?
Africanized honeybees are a hybrid between European honeybees — the familiar managed species kept by beekeepers across North America — and African honeybees introduced to Brazil in the 1950s as part of a breeding experiment. The hybrid escaped into the wild and has been spreading northward through Central America and into the United States ever since, reaching Texas in 1990 and establishing populations across the Southwest and Deep South over the following decades.
Africanized bees are not a different species. They look virtually identical to European honeybees and produce honey the same way. The difference is behavioral: they are significantly more defensive of their colonies, respond to perceived threats more quickly, pursue intruders farther, and are more likely to swarm and abscond. Their venom is no more potent than European bee venom — the danger comes from the number of stings in a defensive response, not the chemistry of individual stings.
Where Are They Now?
As of 2025, established Africanized populations exist across Texas, New Mexico, Arizona, California, Florida, and much of the Gulf Coast. USDA entomologists confirmed new county-level detections in southern Alabama and Georgia in 2025, representing a continued northward expansion of the established range.
Tennessee, including Shelby County and the Memphis metro area, remains outside the confirmed Africanized range. The species has difficulty surviving winters colder than those typical of the Deep South, which has historically limited its northward spread. Climate change is gradually shifting that boundary, but the timeline for Africanized bees reaching Memphis is measured in decades, not years.
Why You Shouldn't Panic — But Should Stay Informed
The vast majority of honeybee colonies in the Memphis area are European honeybees — either managed colonies from local beekeepers or feral colonies descended from managed stock. These bees are generally docile and pose minimal risk to people who don't disturb them.
That said, any established colony — European or otherwise — will defend itself if threatened. The practical advice is the same regardless of species: don't disturb a colony you find in or around your home, keep people and pets away from the area, and call a professional.
How to Tell the Difference
You can't tell the difference visually. Even trained entomologists require laboratory analysis to confirm Africanization. Behavioral clues — unusually aggressive response to minor disturbance, large numbers of bees pursuing a threat far from the colony — can suggest Africanization, but these behaviors can also occur in stressed European colonies.
If you encounter a colony that seems unusually aggressive, don't try to investigate further. Move away quickly, get indoors, and call a professional. At Bees Knees Apiary, we assess every colony before we approach it. We've been working with bees in the Mid-South for years and we know what normal looks like — and what doesn't.
Questions about bees on your property? Call or text us at (901) 825-0232. We're here seven days a week.
