新农药田间药效试验如果针对防治成虫、幼虫或者兼治，应在相应的时间、采取不同的方法进行。
If the aims of pesticide experiment are to control the imago and larva together or one of them, different actions at each time should be taken.
通过田间药效试验，筛选了一批高效、低毒、低残留农药，规范了无公害药材的害虫化学防治技术，生物农药使用比例上升，完善了害虫综合防治技术。
Through outdoor effect test, select a set of high effect and low poison and low remnant pesticide, standardize the technique of chemical control, improve the proportion of the use of bio-pesticide.
通过田间药效试验，筛选了一批高效、低毒、低残留农药，规范了无公害药材的害虫化学防治技术，生物农药使用比例上升，完善了害虫综合防治技术。
Through outdoor effect test, select a set of high effect and low poison and low remnant pesticide, standardize the technique of chemical control, improve the proportion of the use of bio-pesticide.
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