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。
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.
建立了有广泛适应性和较高准确性的麦长管蚜发育历期、寿命、存活、生殖模型。
Models of development, longevity, fecundity and survival with widely adaptability and higher accuracy were constructed.
进而研究了不同抗蚜品种（系）小麦旗叶和穗部的吲哚生物碱含量及其与抗蚜性的关系。
The relationship between indole alkaloid content of flag leaves and ears in wheat varieties (lines) and its resistance to S. avenae was studied.
然而，目前关于春小麦抗蚜性及其机理的研究却不多见。
However, there are rare researches on the resistance to aphids and mechanism of the spring wheat until now.
本文结果可应用于棉花抗蚜性鉴定及其育种上。
The results of the study could be applied in the identification and breeding of cotton resistance to aphid.
通过调查研究，发现烟蚜和蚜传病毒病随着气温等气象因子的变化而呈现一定的规律性动态变化。
Our research results showed that the occurrence of the aphid transmitted virus have some regular dynamic changes interact with the weather facts.
结果表明：兰州地区豌豆蚜性雌蚜均为无翅型，而雄蚜均为有翅型。
The results showed that the ovipara of pea aphid in Lanzhou area were wingless, while males were winged.
用蚜量比值和千粒重降低比值法测定了小麦品种的耐害性。
Tolerance of wheat varieties to insect injury was determined with ratio of aphid numbers and reduction ratio of wheat weight per 1000 grains.
在8L：16D光周期条件下，无雄蚜分化，而性雌蚜比例最高（90.76%）。
Then at 8L:16D photoperiod, no male was produced and percent ovipara was highest (90.76%) in the 3rd generation.
② 性母与性雌蚜和雄蚜的遗传关系都十分接近，说明同一性母既产性雌蚜，也产雄蚜；
Mother of mating forms had almost the same genetic relation to the mating female and male, suggesting that the mother of mating female also be the mother of male; 3.
② 性母与性雌蚜和雄蚜的遗传关系都十分接近，说明同一性母既产性雌蚜，也产雄蚜；
Mother of mating forms had almost the same genetic relation to the mating female and male, suggesting that the mother of mating female also be the mother of male; 3.
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