Unmanned aerial vehicle (UAV) sprayers are widely utilized in commercial aerial application of plant protection products (PPPs) in East Asian countries due to their high flexibility. high efficiency and low cost. but spray drift can lead to low utilization of UAV sprayers application. environmental pollution and bystander exposure risk. https://www.chiggate.com/jerome-brown-philadelphia-eagles-mitchell-ness-1990-legacy-jersey-discount/