Utilization of entomophilic nematodes as carriers of entomopathogenic microbes

研究了与日本松索叶有关的线虫区系。共分离到松木线虫、嗜木叶线虫和生殖器长尾线虫6种。在这些线虫物种中，未描述的Diplogasteroides sp.被认为是昆虫病原微生物的候选载体。然后将线虫的种类描述为d.r andrassyi n.sp .，并进行了摄食实验，即检测了线虫携带微生物的能力。实验结果表明，气孔较宽的线虫比赤霉病螨更能有效地作为寄主。

The nematode fauna associated with the Japanese pine sawyer, Monochamus alernatus was examined. In total, six species on nematodes including pine wood nematode, Bursaphelenhcus xylophilus and Contortylenchus genitalicala were isolated. Within these nematode species, undescribed Diplogasteroides sp. was considered as a candidate for the carrier of entomopathogenic microbes. The nematode species was then, described as D. andrassyi n. sp., and feeding experiment was conducted, i.e., the nematode's ability to carry the microbes were examined. The experiment suggested that the nematode species which has wider stoma can be more effective carrier than D. andrassyi.