引言利用天敌动物进行旱作害虫的生物防治,目前在日本尚未实用。不过,最近已展开积极的研究。在欧美,因早就积极从事旱作害虫天敌利用的研究,故已经实用化的技术不少。此外,想不到在中国和东南亚的部分国家正在进行生物防治,有的并已取得成果。处于这种趋势中,看来在日本该是考虑如何抓紧生 Introduction Biological control of dry-farming pests using predators is currently not yet available in Japan. However, positive research has recently started. In Europe and the United States, due to the early active use of natural enemies of dry pests research, it has a lot of practical technologies. In addition, we can not expect that some countries in China and Southeast Asia are carrying out biological control and some have achieved results. In this trend, it seems that in Japan it is to consider how to grasp the students