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玉米螟微孢子虫Nosema pyrausta是一种寄生于玉米螟的专化性原生动物,对玉米螟种群数量有明显的抑制作用。目前,美国、西德对其研究较多,但都处于室内和田间小区试验阶段。在国内,向锦增曾对我国重点地区玉米螟的自然寄生情况及室内对繁殖的影响进行了研究。我们于1979年开始此项研究工作。几年来,初步弄清了微孢子虫在河北省的自然分布,摸索出室内繁育的方法,总结了使用的技术关键。现把结果报告如下。
Nosema pyrausta is a specialized protozoan parasitized on the corn borer and has a significant inhibitory effect on the population of the corn borer. At present, the United States and West Germany study more about them, but both are in the experimental stage of indoor and field communities. In China, Jin Zengzeng once conducted research on the natural parasitism of maize borer and its indoor multiplication in the key areas in China. We started this research in 1979. In the past few years, the natural distribution of microsporidia in Hebei Province has been tentatively clarified, and the method of breeding indoors has been explored. The key technology used has been summarized. The result is reported below.