淡紫拟青霉(Paecilomyces lilacinus)已报道的有近50种。淡紫拟青霉对根结线虫的寄生作用是秘鲁国际马铃薯研究中心的P.Jatala首先发现,并在1979年首次报道。此后,有60多个国家的科学工作者对此菌进行了研究,证明了淡紫拟青霉对多种植物线虫都具有防治效能,并且有易培养、寄主广、功效高等优点,对 Nearly 50 species have been reported by Paecilomyces lilacinus. The parasitic effect of Paecilomyces lilacinus on root-knot nematode was first discovered by P.Jatala of the International Center for Potato Research in Peru and first reported in 1979. Since then, scientists in more than 60 countries conducted a study of this bacterium, which proved that Paecilomyces lilacin against various plant nematodes have control efficacy, and has the advantages of easy culture, wide host, high efficacy,