Asian Invasive Ticks Spread Across PA, NJ, and Illinois: What You Need to Know

An invasive Asian longhorned tick is rapidly spreading in Pennsylvania, increasing by 150% over five years, primarily in southeastern regions. These ticks can reproduce parthenogenetically, laying thousands of eggs without males, and pose a threat to livestock and wildlife, notably transmitting Theileria orientalis, which affects cattle. While they do not currently transmit Lyme disease widely, their potential to spread other diseases and their rapid population growth make them a significant concern. Precautionary measures include early detection, reporting, and integrated pest management.