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水稻黑条矮缩病曾于1963年及1966年在上海郊区两度流行,造成严重危害,但从1969年以后病害发生很轻,甚至不发生。其间,病害经历了发生、发展和消失的过程。究竟黑条矮缩病在什么条件下流行,在什么条件下比较严重,在什么条件下比较轻或者不发生,如间测报等等,这些问题对于正确地进行测报,以防病害卷土重来流行危害,有着重要的意义。从1966年起对病害的流行因素和预测预报进行了调查研究,现将这些资料做一分析。但因我们工作做得比较少、不够深,资料收集不完全,所以分析起来总感到不能令人满意。
Rice black-streaked dwarf was endemic twice in the suburbs of Shanghai in 1963 and 1966, causing serious damage, but the disease has not occurred very lightly since 1969. In the meantime, the disease experienced the occurrence, development and disappearance of the process. What is the prevalence of black-streaked dwarf disease, under what conditions is more serious, under what conditions is relatively light or does not occur, such as inter-measured newspaper, etc., these questions for the correct measurement of the newspaper to prevent the recurrence of disease hazards comeback, Has important significance. From 1966 onwards, epidemiological factors and forecasting and forecasting of disease were investigated and studied, and the data are analyzed. However, due to our work done less, not deep enough, incomplete data collection, the analysis always felt unsatisfactory.