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检测了昆山、常熟、吴县等地的自然稻种，其恶苗病菌带菌率为１００％；播前采集田间水稻病残体，共分离了５２个镰刀菌株，恶苗病菌占３．８５％，是其次要病源。振荡培养试验表明，供氧条件好有利于恶苗病菌的生长繁殖。温室模拟肥床旱育和常规育秧的结果表明，无论接菌与否，前者秧苗恶苗病均重于后者。田间调查表明，药剂浸种后不经催芽或催至露白播种能有效控制苗期恶苗病。
The natural rice species in Kunshan, Changshu and Wuxian were detected with 100% fungal infection rate. Fifty-two Fusarium strains were isolated from field rice before sowing, accounting for 3.85% Is the second most important cause. Oscillating culture experiments showed that the oxygen supply conditions are good for the growth and reproduction of Fungi. The results of simulating dry-land cultivation and conventional seedling cultivation in greenhouses showed that the former was less severe than the latter, regardless of inoculation or not. Field surveys show that, after soaking the seeds, the seeds can be effectively controlled during the seedling stage without germination or until the white seeds are planted.