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近几年,油菜蚜虫在拜城县发生严重,特别是夏季高温、干旱的年份发生数量大,为害重,受害重者甚至失收。 蚜虫为害盛期正是油莱生长后期,此时油莱已封行,喷药防治难以施行,且常用农药(乐果、敌敌畏)药效期较短,常需喷药3—4次。为此;我们于1985年进行了根施呋喃丹防治油菜蚜虫的试验。 供试药剂为3％呋喃丹颗粒剂(江苏铜山农药厂产),供试油菜为拜城黄油菜。试验地肥力中等,前作冬麦,亩施基肥(猪粪)
In recent years, rape aphids in the city of Baicheng serious, especially in the summer high temperature, drought occurred in a large number of years, as heavy, seriously injured and even lost. Aphid infestation peak is the late growth of oillevel, when the oil has been sealed package, spraying difficult to implement, and commonly used pesticides (dimethoate, dichlorvos) shorter duration of efficacy, often spraying 3-4 times. To this end, we conducted a test of root fenofuran in rape aphids in 1985. The test agent is 3% carbofuran granules (Jiangsu Tongshan Pesticide Factory production) for the test rape Pai Bay butter. Fertility test medium, before winter wheat, Mushi base fertilizer (pig manure)