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在毛主席“备战、备荒、为人民”的伟大战略方针指引下,在“农业学大寨”的群众运动高潮中,为了消灭水稻主要病虫害,多打粮食,支援社会主义建设,在省林科所及金华县东方红林场等单位的大力指导和帮助下,我们于今年6月中下旬第二代稻纵卷叶螟发生期间,在本所二队和叶村大队早稻本田进行了放蜂防治稻纵卷叶螟的试验,并取得了较好的效果。从室内试验来看,螟黄赤眼蜂寄生稻纵卷叶螟卵的能力极强,寄生率达96.7%。从大田实际放蜂结果考查,螟黄赤眼蜂对稻纵卷叶螟卵的寄生率也达73.7～93.6%,平均达84.76%,田间卷叶率也相应下降65.2～72.9%。现将情况简介于下:
Under the guidance of Chairman Mao’s great strategy of “preparing for war, preparing for war and for the people,” in the climax of the mass movement in “learning from agriculture in Dazhai”, in order to eliminate the major pests and diseases in rice, they should spend more on food and support the building of socialism. And Jinhua Dongfang Hualin field units and other units under the guidance and assistance, we in mid and late June this year, the second generation of rice leaf roller occurs in our group and the Yecun brigade early rice Honda bee prevention and control Rice leaf roller test, and achieved good results. From the indoor test point of view, Tricholoma gigantica parasitized rice leafroll eggs extremely strong ability to parasite rate of 96.7%. In fact, the parasitism rate of Trichogramma ostriniae on eggs of C. medinalis reached 73.7-93.6% with an average of 84.76%, and the leaf-rolling rate decreased by 65.2-72.9% in field. The brief is now under: