How to prevent and control orchid pests and diseases? A full analysis of the key methods

Like any plant, orchids are affected by factors spread through air and insects, as well asorchid growingcarelessness by people, excessive moisture, unclean growing medium, diseased plants, improper fertilization, poor ventilation, insufficient light, and other human factors, leading topests and diseasesoutbreaks. First, the human-caused reasons forpests and diseasesmust be addressed, and second, the invasion of bacteria through air circulation and the spread ofpests and diseasesby insects must be prevented. As for viruses, apart from human factors, mostorchidviruses are spread by insect bites. For this reason, killing insects in the orchid growing area is the main scope of virus prevention. orchidpests, diseases and viral diseases are basically the same as the pests, diseases and viral diseases that occur in crops such as grain and vegetables, so using pesticides to controlorchidpests, diseases and viral diseases is relatively effective. Every year from the Spring Equinox to the Autumn Equinox, this period is the season when insects breed and spread, spreading pathogens and viruses. Spray insecticide once or twice a month; insecticides can be mixed with fungicides for spraying, which reduces the number of applications, but they must be mixed and used immediately, and must be used according to the product instructions to avoid mistakes. For pathogens and viruses, a combined treatment approach can be adopted. Some pesticides themselves have a combined effect, inhibiting and killing anthracnose, leaf spot, fusarium wilt, powdery mildew, southern blight, and others, while also inhibiting and killing certain viruses. (Chen Jisheng)