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一、为害情况在我县蛀茎为害谷子的害虫主要有粟茎跳甲、粟灰螟,玉米螟。这三种蛀茎害虫,每年都有不同程度的发生与为害。一代粟茎跳甲幼虫和一代粟灰螟幼虫在谷子苗期蛀茎为害,造成座疤苗和枯心苗致使缺苗断垅。据调查资料表明:凡防治及时的谷田被害株率一般可控制在0.1％以下:而防治不及时或不防治的谷田,被害株率都在10％左右,有的地
First, the damage situation In our county pest damage moth stem millet main stem millet, millet borer, corn borer. These three pest-boring pests, each with varying degrees of occurrence and damage. A generation of millet instar larvae and a generation of corn borer larvae in the millet seedling borers stem damage, resulting in scar seedlings and dead heart seedlings caused lack of seedlings break. According to the survey data show that: where the timely control of the damage rate of Tanigu Shizutani generally can be controlled at 0.1% or less: the prevention and treatment is not timely or non-control Gu Tian, the victim plant rate of about 10%, and some