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广西省百色地区的甘蔗绵蚜虫。每年在5—12月均有发生,尤以9—11月发生最多。为了探求防治效力高而费工少的防治方法,以及保护瓢虫等天敌的繁殖,广西省百色农业试验站于去年曾应用 E.1059的内导作用,进行防治甘蔗绵蚜虫试验,兹将结果摘要报导如次。一、试验方法1.蔗茎包扎:在甘蔗植株茎干基部,剥掉叶鞘2—3节,使蔗茎露出外面,缠绕0.3寸厚、1寸大的一层棉花带状,用滴管分别滴上1%、0.5%稀释浓度药液,每株1.5—3毫升。2.蔗茎涂抹:同上浊剥掉叶鞘,用新毛笔蘸药
Sugar cane cotton aphid in Baise, Guangxi Province. Every year from May to December have occurred, especially in September-November occurred the most. In order to explore the prevention and treatment of high efficiency and less costly methods of prevention and control, as well as the protection of natural enemies such as ladybug breeding, Guangxi Province, Bose Agricultural Experimental Station had E. E. coli used in the guide last year, the prevention and control of sugar cane cotton aphid test, will result Abstract reported as follows. First, the test method 1 cane banding: In the stem base of sugar cane plant, stripped 2-3 leaf sheath, the cane stem exposed outside, wound 0.3 inch thick, 1 inch large layer of cotton ribbon, with a dropper respectively Drop 1%, 0.5% diluted solution, each 1.5-3 ml. 2. Cane smear: the same turbidity removed the leaf sheath, with a new brush dipped in medicine