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湖南省微生物所和湖南师院生物系等单位,从1973年起对白僵菌的灭蝉效果进行了研究,1979年通过了鉴定。经筛选证明,白僵菌 75-1、76-2二株致病力较强,对叶蝉成虫和各龄若虫均有较强的致病力。多年大田试验表明:每亩用白僵菌孢子粉2斤(含孢子量100亿/克)拌以30~50斤草木灰或细土撤施,施菌后7~9天,虫口下降 60~70%,最高达90%以上。施菌一个月后,仍有控虫作用。对稻田蜘蛛等天敌无杀伤作用。
Hunan Institute of Microbiology and Hunan Normal University Department of Biology and other units, from 1973 on Beauveria bassiana cicada effect was studied in 1979 passed the appraisal. The screening proved Beauveria bassiana 75-1, 76-2 two strong virulence of the leafhopper adults and nymphs have strong virulence. Years of field trials show that: Beauveria bassiana spore powder per acre with 2 kg (spore amount 10 billion / g) with 30 to 50 kg of ash or fine soil withdrawal, 7 to 9 days after the application of bacteria, the population decline of 60 to 70 %, Up to 90% or more. After one month of application of bacteria, there are still insecticidal effects. On the rice fields spiders and other natural enemies without killing effect.