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日前,黑龙江省植保站根据各地植保站监测调查情况,结合历史资料、栽培状况及天气情况等综合分析,预计大豆中后期主要病虫害总体为中等发生。其中,大豆食心虫中等偏轻发生;大豆蚜虫总体中等偏轻发生,部分越冬寄主较多、蚜量较大的地区将偏重发生;大豆菌核病有偏重流行趋势;大豆“折茎病”在西北部大豆主产区将中等偏重发生。防治建议:1.大豆食心虫。当大豆食心虫成虫田间出现打团,并且每团蛾量较大,出现成倍增长的现象,表明成虫已进入发生盛期,1～2天内开始防治成虫。在大豆封垄好的情况下,可用敌敌畏熏蒸。每亩用80%敌敌畏乳油100～150毫升,将高粱或玉米秆切成20厘米长段,一端去皮,
Recently, the plant protection station in Heilongjiang Province, based on the monitoring and investigation of plant protection stations around the situation, combined with historical data, cultivation and weather conditions and other comprehensive analysis, the main pests and diseases are expected to occur in the mid-late soybean moderate. Among them, soybean borer occurred moderately light; soybean aphids generally moderately light, part of the host more wintering, aphid large areas will be prevalent; Soybean sclerotinia bias popular trend; Soybean In the northwestern main soybean producing areas will be moderately heavy occurrence. Prevention and control recommendations: 1. Soybean borer. When soybean beetle adult field appeared hit group, and each group of moths larger, appeared doubled phenomenon, indicating that adults have entered the peak, 1 to 2 days to start controlling adults. In the case of airtight soybeans, the available dichlorvos fumigation. 100% ~ 150ml of 80% dichlorvos EC per acre, cut into 20 cm long section of sorghum or corn stalks, peeled at one end,