Insect bioassay results showed that these homozygous lines had significant inhibition to brown planthopper.
抗虫鉴定结果发现这些纯系对褐飞虱具有明显的抑制作用。
After the whole typhoon landed, the southwest airflow rebuilt, and a mass rice brown planthopper migrated to the north.
台风整体登陆后，西南气流的再次建立，造成褐飞虱的大量北迁。
The metabolic resistance of the brown planthopper, Nilaparvata lugens, to buprofezin and metamidophos was investigated in this article.
说明褐飞虱对这两种药剂的代谢抗性机制存在差异。
The reflectance of rice plant damaged by the brown planthopper(BPH, Nilaparvata lugens) was measured using an ASD handheld spectroradiometer.
利用手持式光谱仪测定了褐飞虱为害后稻株的光谱反射率。
The community dynamics of egg parasitoids that could parasitize the brown planthopper in non rice habitats such as bunds and roadside vegetation were studied.
寄主卵、寄主植物和栖息生境对卵寄生蜂的性比、体形大小和发育历期有着明显的影响。
It is suggested that virulence of rice brown planthopper was variable and the character of variety resistant or susceptible to insect was the exterior factor of virulent shift.
这表明褐飞虱的致害性是可变异的，水稻品种抗、感虫特性是其转化的诱因。
The virulence characteristics of brown planthopper, Nilaparvata lugens Stal, from paddy field population and greenhouse population collected in late rice field last year was compared.
比较研究了当年采自田间的褐飞虱种群与上一年虫源在室内越冬繁殖种群对不同抗虫品种的致害性差异。
The small brown rice planthopper is an injurious insect on food crop of Ningxia.
灰飞虱是宁夏粮食作物上的一大害虫。
The small brown rice planthopper is an injurious insect on food crop of Ningxia.
灰飞虱是宁夏粮食作物上的一大害虫。
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