What are the control methods for gray leaf spot on Japanese euonymus (Euonymus japonicus)?
Control methods for gray leaf spot on Japanese euonymus: 1. Strengthen plant quarantine and use healthy seedlings. 2. Strengthen tending and management, cultivate strong seedlings, and enhance the disease resistance of the plants. 3. In autumn, winter and early spring, thoroughly remove diseased leaves and fallen diseased leaves, and burn them in a centralized manner to reduce the source of infection. 4. In the early stage of the disease, spray the plants once every 20 days with a 200-fold dilution of non-toxic high-fat film, for 3 to 4 consecutive sprays. 5. During the epidemic period of the disease, spray a 500- to 1000-fold dilution of 50% carbendazim or 75% chlorothalonil, used alternately, for 4 to 5 consecutive sprays.
Control methods for gray leaf spot on Japanese euonymus: 1. Strengthen plant quarantine and use healthy seedlings. 2. Strengthen tending and management, cultivate strong seedlings, and enhance the disease resistance of the plants. 3. In autumn, winter and early spring, thoroughly remove diseased leaves and fallen diseased leaves, and burn them in a centralized manner to reduce the source of infection. 4. In the early stage of the disease, spray the plants once every 20 days with a 200-fold dilution of non-toxic high-fat film, for 3 to 4 consecutive sprays. 5. During the epidemic period of the disease, spray a 500- to 1000-fold dilution of 50% carbendazim or 75% chlorothalonil, used alternately, for 4 to 5 consecutive sprays.