The Africanized honey bee was first introduced to Brazil in the 1950s in an effort to increase honey production; but, in 1957, 26 swarms accidentally escaped quarantine. Since then, the species has spread throughout South America, and arrived in North America in 1985. Hives were found in south Texas of the United States in 1990. This species was discovered to have spread into the American Northwest in 2011.[1]
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