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根据2011年浙江省粮油作物主要病虫发生情况、当前病虫发生基数、省气候中心2012年长期天气趋势预测,以及农作物耕作栽培和品种布局等情况,结合主要病虫历年发生演变规律,经综合分析预测,浙江省植物保护检疫局预计2012年全省油菜和小麦主要病虫呈中等发生趋势,水稻主要病虫呈偏重发生态势,其中迁飞性害虫褐飞虱和稻纵卷叶螟发生趋势仍然较为严峻,一代二化螟、纹枯病中等偏重发生;稻瘟病和南方水稻黑条矮缩病有潜在流行的可能;
According to the occurrence of major diseases and pests of cereals and oil crops in Zhejiang Province in 2011, the current base incidence of pests and diseases, the long-term weather forecast of the provincial climate center in 2012, the cultivation and cultivation of cultivated crops and the distribution of cultivars, etc., Analyzed and predicted, Zhejiang Plant Protection and Quarantine Bureau predicts that the main pests and diseases of rapeseed and wheat in the province will show a moderate trend in 2012, with the main pests and diseases of rice showing a tendency to occur. Among them, the trend of migratory pest Nilaparvata lugens and Cnaphalocrocis medinalis remains relatively Severe, the generation of stem borer, sheath blight moderately heavy occurrence; rice blast and southern rice black-streaked dwarf disease have potential epidemic;