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以虫治虫是利用寄生性和捕食性昆虫天敌消灭农林害虫的一种方法,是生物防治的重要内容。我国1972年搞生物防治的省(市、区)仅10个,防治面积120万亩左右,1975年发展到27个省(市、区)。1977年的生物防治工作又有新的发展,据统计,全国(除台湾省外)生物防治面积达10500万亩,其中以虫治虫面积2749万亩。在利用和研究上均取得了显著成绩和新的进展。现将其主要方面的近况简述如下:
Insect pest control is a way to eliminate pests in agriculture and forestry using parasitoids and predatory insect natural enemies, and is an important part of biological control. In our country, there were only 10 provinces (cities and districts) engaged in biological control in 1972, and the area for prevention and control was about 1.2 million mu. In 1975, it developed to 27 provinces (cities and districts). According to statistics, the biological control area in the whole country (excluding Taiwan Province) reached 105 million mu, of which 27.49 million mu was pest control. In the utilization and research have made remarkable achievements and new progress. The main aspects of the current status is as follows: