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云尺娥Buzura thibetaria Oberthur是我省茶树的大害虫,1976年曾发现幼虫自然感病死亡,经采样镜检,均是病毒,一般死亡率为20％,高者达90％以上。现将初步研究结果简报于下,以供参考。 供试材料 系1976年自然罹病虫尸,经初步提纯的病毒悬液。田间防治用保存一年的黄泥粉吸附制剂。 试验方法 将病毒悬液配成所需浓度,用喷雾器喷于饲料上,晾干后喂饲健康幼虫,逐日记载死亡数(镜检,虫体内充满多角体病毒)。
Buzura thibetaria Oberthur is a pest of the tea tree in our province. In 1976, it was found that natural larvae died of the disease. After sampling and microscopic examination, all were viruses. The general mortality rate was 20% and the highest rate was over 90%. Now preliminary results of the briefing below, for reference. Test materials Department of Natural pest disease in 1976, the initial purification of the virus suspension. Field control with a year to save the yellow clay adsorption preparations. Test methods The virus suspension dubbed the desired concentration sprayed on the feed with a sprayer, dried to feed healthy larvae, the number of death records daily (microscopic examination, the body is full of polyhedrosis virus).