Webinar organized by PROCINORTE with IICA support on International Plant Health Day, focused on biological pest control as a sustainable strategy to enhance agro-ecosystem resilience. The event highlighted the Canadian National Biological Control Program for Arthropods and the management of invasive insects through specialized parasitoids. It also showcased innovations in microbial control using nematodes and entomopathogenic fungi (including genetic improvement, automation of mass production, and protective formulations), while discussing biotic and abiotic factors that constrain the effectiveness of biocontrol agents in the field.