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近几年我们县的烟田常有蒙古拟地甲为害烟苗,被为害的烟苗轻者发黄,生长缓慢;重者则造成死亡,致使烟田缺苗。据1982年和1983年在辛寨镇、蒋峪镇、盘阳乡烟田调查,有15-20%的烟田发生拟地甲,轻重程度不一,烟苗被害株率有的高达30%左右。1986年1-5月份气候干旱,拟地甲发生较为普遍,全县10万亩春烟均不同程度地遭受拟地甲为害。一般被害株率为15-20%,个别地块为害较重。如蒲沟乡南上峪村和大关乡下付峪村的烟田,个别地块被害株率高达50%,死苗率为30%,拟地甲幼虫给烟田造成了严重损失。据观察,当地发生的拟地甲为蒙古拟地甲,
In recent years, the tobacco fields in our county often have the smoky tobacco seedlings to be dwarfed in Mongolia, and the yellowish tobacco plants that have been harmed are yellowish and grow slowly. In severe cases, deaths are caused, resulting in the lack of seedlings in the tobacco fields. According to the survey conducted in 1983 and 1983 in Xinzhai, Jiangyu and Panyang tobacco farms, 15-20% of the tobacco fields occurred and the degree of severity varied. The rate of tobacco seedlings killed was as high as 30% about. From January to May 1986, the climate was arid, and the occurrence of Nostoc commune was relatively common. The 100000 mu spring smoke in the county suffered from Nostoc commune to some extent. The general victim plant rate of 15-20%, the individual block heavier damage. Such as Pu ditch Township village on the village and mark the countryside pay Yucun tobacco fields, individual plots of victims of the strain as high as 50%, the rate of dead seedlings is 30%, giardair larvae caused serious damage to tobacco fields. It is observed that the occurrence of a local to be a to Mongolia to be a,