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根节腐烂病是一种新发现的水稻病害,在1970年以前未引起人们的注意,误将该病造成的枯株认作为“螟害”,也未予追究。1970年以后省内嘉兴、杭州、绍兴、宁波、金华、丽水、温州等地区相继发生,外地的江西、安徽、江苏和上海等省(市)也有发现。该病在一般情况下,仅零星发生,但有的年份,如1970、1973、1974年也有成片发生的,有的田块也遭致严重危害。如余杭县石蛤公社宝塔大队1970年有20余亩早稻田遭此病的严重危害损失稻谷达五成左右。为了弄清此病的发生原因和防治措施,我们作过一些初步的调查,现将所得材料整理如下,供参考。
Root rot disease is a newly discovered disease of rice. Before 1970, it did not attract people’s attention. It mistakenly identified the dead plant caused by this disease as “stem borer” and did not investigate it. After 1970, Jiaxing, Hangzhou, Shaoxing, Ningbo, Jinhua, Lishui and Wenzhou all took place in succession in the province. Other provinces (cities) in Jiangxi, Anhui, Jiangsu and Shanghai also discovered. In general, the disease only sporadically occurred. However, some years, such as 1970, 1973 and 1974, also took place in pieces. Some fields were also seriously endangered. For example, the pagoda brigade of the commune clam of Yuhang County in 1970 had more than 20 acres of wounded rice fields that suffered serious damage from the disease and damaged the rice by about 50%. In order to understand the causes of the disease and prevention and treatment measures, we made some preliminary investigations, the materials are now organized as follows, for reference.