The geomagnetic field affects all living organisms on the Earth.In this study we investigated the developmental and beha......

水稻粘虫混合种群幼虫空间分布型测定结果表明：(1)频次分布检验为负二项分布；（2)聚集度指标测定为聚集分布；(3)m^*-m的钱性回归方程为m......

Effects of SO2 pollution on growth of the army worm, Mythimna separata, were investigated by rearing the larvae for 12 d......

木文是采用田间控制不同接虫数量为害为主,辅以大田调查对应的方法获得一个合理的粘虫防治指标。内容肯定虫量越多,产量损失越大,......