Invasive Argentine ants are defending other pests in California, troubling farmers and leaving natives hungry

Invasive Argentine ants have formed a unique symbiotic relationship with sap-feeding insects, creating challenges for citrus groves and vineyards. First spotted in the U.S. in 1891, their expansion is aided by California’s favorable climate and human activity. To effectively manage the situation, it’s crucial to tackle both the ant populations and their pest partners as interconnected issues.