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去年二月,广东省科研领导小组根据省革委会领导同志的指示,组织有关科研单位和大专院校的革命科技人员,深入生产第一线,以廉江县为重点,在当地革委会的领导下,组成了以贫下中农为主体的三结合科技队伍,对水稻病虫害的生物防治开展了群众性的科学实验。到今年五月,在廉江县六个公社、十二个点的三百九十六亩稻田中,利用螟黄赤眼蜂防治稻纵卷叶虫,灭卵率达到80%以上,最高达97.2%,获得了显著效果。用这种蜂防治稻纵卷叶
In February last year, the leading group for scientific research of Guangdong Province organized the revolutionary scientific and technical personnel of scientific research institutes and tertiary institutions in accordance with the instructions of the leading comrades of the provincial revolutionary committees and commissions and deepened the production of the first line. With the emphasis on Lianjiang County, Under the leadership of the composition of the poor middle peasants as the mainstay of the three combination of scientific and technological team on biological control of pests and diseases of rice carried out mass scientific experiments. By May of this year, in the six communes of Lianjiang County and the 396 acres of paddy fields at twelve spots, the use of Trichogramma ostriniae to control the rice leafroller has an egg-killing rate of over 80% 97.2%, obtained remarkable effect. Use this kind of bee to control rice leaf curling