Occurrence Characteristics, Prevention and Control of Pests and Diseases of Tropical Outdoor Cultivated Rosa chinensis

According to the hazards and occurrence characteristics of major diseases of Rosa chinensis,such as powdery mildew,branch canker and black spot,and major pests such as mites,aphids,thrips and Lepidoptera,prevention and control of the diseases and pests should be based on pruning,garden cleaning,water and fertilizer management,and chemical control can be applied as the supplement. Suitable prevention and control measures should be adopted for preventing the diseases and pests scientifically.