玉米螟是苏联契尔卡塞地区危害性最大的玉米害虫。在这个地区从一九六八年开始每年采用赤眼蜂防治。玉米螟的面积为60000——80000公顷。一九七一——一九七二年所进行的工作对利用卵寄生蜂的特点可以举例说明。一九七一年在生产中利用当地种类—— Corn borer is the most harmful corn pest in the region of Cherkasy, the Soviet Union. Trichogramma was used in the area annually since 1968. Corn borer area of ​​60,000 - 80,000 hectares. The work carried out between 1976 and 1972 on the use of eggs parasitic wasps can be exemplified. Utilization of local species in production in 1971 -