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泰兴西北部地区,过去沟金针虫为害很严重,1971～1977年,在旱田地区停用“666”毒土后,采取轮种水稻方法,有效地杜绝了虫害.如管营一队有20亩田,1974年种了一次水稻,至1978年春种稻已间隔三年,土中仍无沟金针虫,麦苗亦无被害现象.另据田间调查:在无积水的田中,0～12寸土层内,每平方米有虫42头;秋季未淹水的田,麦苗被害率为8～12%,而淹水10天、20天和30天的,麦苗被害率依次降为4.8%、2.4%和0.1%.室内淹水试验也证明,沟金针虫不耐淹水,发育幼虫淹水5～7天,死亡率为90%,淹水10天就全部死亡;滞育幼虫淹水60天死亡率为95.6%(表1、2、3).
In the northwestern part of Taixing, the genus Gladvus long ago had a very serious damage. After deactivating the “666” poisonous soil in the dryland areas from 1971 to 1977, it adopted a rotation of rice to effectively eliminate pests. Tian, 1974, planted a rice, to the spring of 1978, rice has been separated by three years, the soil is still no ditch, wheat seedlings are not harmful phenomenon.According to field surveys: in the no water Tianzhong 0-12 inch soil layer And 42 pests per square meter. In the uninfected fields in autumn, the damage rate of wheat seedlings was 8-12%, while the damage rates of wheat seedlings were reduced to 4.8% and 2.4% respectively after 10, 20 and 30 days of flooding, And 0.1% respectively.The in-house flooding test also proved that the golden needleworms were intolerant to waterlogging, the larvae were flooded for 5 to 7 days, the mortality rate was 90%, all died within 10 days of flooding; diapause larvae died 60 days after flooding The rate was 95.6% (Tables 1, 2 and 3).