沪郊水稻重大病虫灾害现状及未来控制对策

Current Situation and Control Countermeasures ofEventful Rice Diseases and Pests in Shanghai Suburbs

1999年以来 ,上海郊区水稻病虫发生严重 ,水稻螟虫危害逐年上升 ,稻纵卷叶螟、白背飞虱暴发机率高 ,水稻条纹叶枯病突然猛增 ,稻瘟病、稻曲病潜在威胁大。通过准确地指导病虫防治 ,每年挽回粮食损失1.0 5～ 1.2 5亿kg ,但实际损失仍达 0 .0 8～ 0 .10亿kg。为了有效控制病虫危害 ,减少粮食损失 ,上海郊区一定要完善植保组织体系 ,进一步提高植保人员的技术水平 ,保证必要的病虫监测资金投入和工作条件 ,为上海郊区粮食丰收提供必要的保障基础。

Since 1999, the rice insect pests and diseases have happened seriously in Shanghai suburbs, the damage by rice borers has been more serious year by year, the incidence of rice leaf rollers and white-backed planthoppers has been high, rice stripe virus has increased sharply, and the hidden threat of Pyricularia grisea and Ustilaginoidea virens has been great. Though 105～125 million kilogram of grain has been retrieved each year by proper direction of preventing and controlling the diseases and pests, the actual loss of grain still reaches 8～10 million kilogram. In order to control rice diseases and pests effectively and reduce the loss, an organized system of plant protection in Shanghai suburbs should be improved, technical level of plant protection personnel should be heightened, and the working condition and investment required to monitor the diseases and pests should be guaranteed.