通过对南方水稻黑条矮缩病的发病特点及暴发原因的分析,明确了毒源的大量积累和传毒昆虫的加重发生是导致该病暴发的主要原因;其次是气候、品种与防治不当等因素对该病害的发生也有一定影响。在农业防治的基础上,狠抓种子浸种或拌种处理和抓好水稻秧苗期及分蘖期喷药防治,可较好控制其危害。 Through the analysis of the incidence characteristics of black-streaked dwarf disease in southern rice and the causes of the outbreak, it is clear that the accumulation of poisonous sources and the aggravating occurrence of poisonous insects are the main causes of the outbreak of the disease; followed by climate, species and improper prevention and treatment Factors also have some impact on the occurrence of the disease. On the basis of agricultural prevention and control, pay close attention to seed soaking seed or seed dressing and grasping rice seedling and tillering stage of spraying prevention and control, the harm can be better controlled.