In the 1990s, as Africanized honey bees spread into Arizona around 1993, the USDA-ARS Carl Hayden Bee Research Center (CHBRC) in Tucson became the key facility for official identification of feral colonies. Arizona relied on CHBRC's morphometric analysis, measuring wing vein lengths and 37 body characteristics from bee samples to distinguish Africanized bees from European ones with high accuracy. Genetic methods like mitochondrial DNA (mtDNA) analysis and PCR assays emerged during this period to

Africanized honey bees are a non‑native, invasive strain of Apis mellifera that can disrupt pollinator communities, alter plant reproduction, and increase risks to wildlife and people across the Americas. Their impacts on native bees are strongest through competition for food and nesting sites, disease and parasite transmission, and the way dense, aggressive colonies reshape which plants get pollinated. Africanized bees originated as hybrids between African and European honey bees released in Br