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于1982—1985年间对荸荠秆枯病的发生规律和防治措施进行了田间试验。此病菌仅侵染荸荠和野荸荠,主要以带菌球茎、土中病残体为初侵染源,病菌孢子借风雨和灌溉水传播。经气孔或直接侵入,生长季节有多次再侵染,—般潜育期5—13天,多雨或重雾露天气,重茬,定植早或过密、灌水方式不当、种植易感品种及偏施氮肥等均有利于发病、试验证明防病有效措施为,种球茎和荠苗用25％多菌灵250倍液浸16h;生长季节及时用2s％多菌灵250倍液、70％托布津1000倍液或45％代森铵1000倍液喷雾预防,7-10天1次,防效达95％,防治区比对照区增产2—3倍。
Field experiments were carried out on the occurrence and control measures of water chestnut blight during 1982-1985. The pathogen infects only water chestnuts and wild water chestnuts, mainly to carry corms, the soil is the initial source of residual disease, spores of bacteria by wind and rain and irrigation water spread. Through stomata or direct invasion, there are many re-infection during the growing season. Generally, the incubation period is 5-13 days. Rainy or foggy weather, continuous cropping, early or over-planting, improper irrigation, planting susceptible varieties and partial Nitrogen fertilizer are conducive to the disease, the test proved effective measures for disease prevention, seedlings of bulbs and water chestnuts with 25% carbendazim 250 times liquid immersion 16h; growth season in time with 2s% Carbendazim 250 times, 70% Topaz 1000 times or 45% ammonium 1000 times spray prevention, 7-10 days 1, 95% control effect, control area yield 2-3 times more than the control area.