The agricultural fumigant segment applies vapor-phase substances within barns, containers, vessels, greenhouses, root zones, silos, vaults, fields, and warehouses. Gases used are chloroethane, ethyl nitrite, thiocarbamate, benzaldehyde, crotonic acid, vinyl fluoride, and sulfuryl fluoride. Dispersion systems feature nozzles, sensors, regulators, heaters, atomizers, boosters, chambers, dispensers, and filters. Roles include product handlers, bioscientists, policymakers, applicators, instructors, engineers, consultants, labs, and researchers. Use benefits cover disinfection, sterilization, pest prevention, infection control, microbial kill, preservation, and safety assurance. Issues include misuse, overexposure, public backlash, logistical hurdles, application complexity, and cross-border restrictions. Enhancements target artificial intelligence, robotics, bio-sensing, and drone coordination.