1·Through the experiment of prevention and cure apple aphis with 20% Acetamiprid wet powder, explicit the result of prevention and cure apple aphis to attain the best dosage.
通过20%啶虫脒可湿性粉剂防治苹果黄蚜试验，明确了它对苹果蚜虫的防治效果以达到最佳用量。
2·I have seen small population almost wiped out by fungus at the same time as dense aphis populations elsewhere.
我曾见到小的群体在其它任何地方的高密度蚜群被真菌杀死的同时差不多也被杀死了。
3·The infected ratio, parasitical rate and central effect of Beauveria bassiana on Soybean aphis were measured though the field plot experiments.
田间小区试验测定了白僵菌对大豆蚜的感染率、寄生速率和防效。
4·They had strong pursuing and control effect to Aphis citricola Van der Goot and Tetranychus viennensis Zacher from time dimension.
生草果园天敌对主要害虫绣线菊蚜和山楂叶螨在时间维度上有较强的追随效应和控制作用。
5·The dynamics of the soybean aphid Aphis glycines, fed on glabrous soybean and the pubescent soybean plant, was observed in the laboratory.
试验研究了大豆植株形态对大豆蚜的寄生和天敌捕食的影响。