论文部分内容阅读
利用小叶碟添加法和饲料混药法测定了砂地柏的甲醇提取物对粘虫和玉米象的取食反应和种群繁殖率 .结果表明 ,粘虫对砂地柏甲醇提取物表现出强烈的拒食行为 .各处理的总校正死亡率均未超过 30 % ,但试虫在取食了一定量毒叶约 12h后 ,表现出明显的中毒症状 .甲醇提取物的 2个浓度处理对玉米象成虫的种群增长抑制率均达到 80 %以上 ,表现出很强的种群形成抑制作用 .丙酮溶剂对玉米象成虫种群繁殖有一定不利影响
The feeding responses and population multiplication rates of methanol extract of Sabina vulgaris to Mythimna separata and Zea mays were determined using the method of adding leaf disc and the feed mixture method.The results showed that armyworm showed strong antifeedant behavior against methanol extract of Sabina vulgaris The total corrected mortality of all the treatments did not exceed 30%, but the test insects showed obvious symptoms of poisoning after consuming a certain amount of poisonous leaves for about 12 hours.Methanol extract of two concentrations of adult corn populations Growth inhibition rate reached more than 80%, showed a strong inhibitory effect on population formation. Acetone solvents on the adult population of corn elephants have some adverse effects