As extreme climate conditions worsen each year, powdery mildew control has become increasingly important. Against this backdrop, Dongoh Seed's powdery mildew-resistant zucchini varieties are drawing significant attention. Powdery mildew, which occurs in high-temperature and humid environments, interferes with photosynthesis and inhibits plant growth. Primarily affecting leaves and stems, it can severely damage fruits in serious cases. In response, Gyeongnong's seed specialist brand Dongoh Seed is contributing to stable production and improved farm income with its particularly powdery mildew-resistant 'PMR Teunseunak' and 'PMR Chamjinae' varieties. PMR Teunseunak is a zucchini variety that is extremely resistant to powdery mildew even in the late growth stage.