摘要
Based on years of experience in prevention and control of vegetable diseases and insect pests,three characteristics of infectious diseases of vegetables,including complex symptoms,fast propagation and severe damage,are summarized.The host place,infection way,infection process and prevalence conditions of pathogens are analyzed,and comprehensive,ecological,efficiency principles for the prevention and control of infectious diseases are put forward.Eventually,integrated prevention and control techniques of infectious diseases of vegetables are put forward from five aspects of plant quarantine,agricultural control,physical control,biological control and chemical control.
