南方水稻黑条矮缩病发生成因与防控策略

Causes for the Occurrence of Southern Rice Black-Streaked Dwarf Disease and the Strategies for Its Control

南方水稻黑条矮缩病是贵州省锦屏县水稻常年发生的一种病害.笔者经过11年的监测与治理研究,经统计分析,发现病害的发生与水稻品种抗病虫性、白背飞虱的虫源基数和带毒率、耕作制度、白背飞虱迁入期与水稻敏感期的吻合度等关系密切.本文根据病害的发生成因,提出了相应的防控策略,以期为有效防治病害的发生提供参考.

Southern rice black-streaked dwarf virus is a disease that occurs all year round in Jinping County of Guizhou Province.A statistical analysis based on the data of 11 years monitoring and control research shows that the occurrence of this disease is closely related to the insect-resistance of the rice varieties,the source base and poisoning rate of Sogatella furcifera Horváth,the farming systems,and the coincidence of the migration period of S.furcifera with the sensitive period of the rice plants.According to the above results,corresponding prevention and control strategies are proposed in order to provide a reference for the effective prevention of this disease.