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在毛主席革命路线指引下,随着“农业学大寨”群众运动的蓬勃发展,1975年5月,我们在各级党委的热情关怀下,在县革委生产部的直接领导下,由山东大学生物系教师作指导,开展了赤眼蜂防治玉米螟的科学实验。全县13处公社的62个大队、两处中学、一个农场进行了放蜂治螟工作,放蜂面积达8,677亩,其中春玉米325亩,秋玉米8,352亩。经过一年的实践,使我们初步体会到,应用赤眼蜂防治玉米螟有以下优点:
Under the guidance of Chairman Mao’s revolutionary line, with the vigorous development of the masses movement in “Studies of Agriculture in Dazhai,” in May 1975, with the enthusiastic care of Party committees at all levels and under the direct leadership of the Production Department of the County Revolutionary Committee, University biology faculty as a guide to carry out the Trichogramma ostriniae scientific experiments. 62 brigade, two middle schools and a farm in 13 communes of the county carried out beekeeping and beekeeping operations. The area for beekeeping was 8,677 mu, including 325 mu of spring maize and 8,352 mu of autumn maize. After a year of practice, so that we initially realized that the application of Trichogramma had the following advantages: