线虫DD—136(Neoaplectana carpocapsae Weiser)是一种昆虫寄生性线虫。其第三龄幼虫通过寄主昆虫的口器侵入到消化道后,穿过肠壁进入血腔,引起昆虫败血症,一般经24～36小时寄主便大量死亡。在害虫生物防治工作中,自Dutky和Hough指出利用寄生性线虫对害虫防治的可能性后,美国、捷克、澳大利亚、苏联、法国等开始研究其在害虫防治上的实用价值。据报导,被应用于防治害虫的实验有100多项,包括 Nematode DD-136 (Neoaplectana carpocapsae Weiser) is an insect parasitic nematode. The third instar larvae invade the digestive tract through the mouth of the host insect and enter the blood cavity through the intestinal wall, causing insect sepsis. In general, a large number of host deaths occur after 24 to 36 hours. In the biological control of pests, since Dutky and Hough pointed out the possibility of using parasitic nematodes for pest control, the United States, the Czech Republic, Australia, the Soviet Union and France began to study their practical value in pest control. It has been reported that more than 100 experiments have been applied to control pests, including