| 1. | A method for monitoring of imidacloprid resistance in brown planthopper , nilaparvata lugens 褐飞虱对吡虫啉抗性监测方法的研究 |
| 2. | Spatial interactions between brown planthopper and white back planthopper in the rice fields 褐飞虱与白背飞虱自然种群空间关系 |
| 3. | Discussions on the experimental technique on biotype of the brown planthopper nilapavata lugens 褐飞虱生物型研究中几个问题的商榷 |
| 4. | Influence of resistant rice varieties to the population parameters of nilaparvata lugens and sogatella furcifera 抗性水稻品种对褐飞虱和白背飞虱种群参数的影响 |
| 5. | Carboxylesterase activities of the brown and the whitebacked planthoppers feeding on resistant rice varieties 水稻抗性品种对褐飞虱和白背飞虱羧酸酯酶活力影响的比较研究 |
| 6. | The brown planthopper , nilaparvata lugens ( st ? l ) is an important agricultural insect pest showing resistance to many different insecticides 摘要褐飞虱是一种重要的农业害虫,其对许多杀虫剂都产生了抗药性。 |
| 7. | The positions of feeding and oviposition were shifted gradually from the bottom to upper of leaf sheath , and then to leaf blade with the reduction of nitrogen content in host plants 随着稻株含氮量的下降褐飞虱取食和产卵的位置从叶鞘底部逐渐向上部转移,直至叶片中脉。 |
| 8. | The highest feeding frequency was found in the nymphs which reared successively on 0n rice plants , on 0n rice plants , implying that feeding frequencies of bph populations were related closely to their previous host plants 饲养在低氮稻株上的褐飞虱种群在低氮稻株上的取食频次最高,褐飞虱种群的取食频率与其前期饲养的寄主有关。 |
| 9. | The second male vibration signal ( smvs ) could not only stimulate female and male to give their love sound , but also gave rise to male unease and competition . male giving smvs was more competitive . smvs was often heard when many males congregated together 时域特征分析知,褐飞虱雌、雄虫求偶呜声信号的时域特性个体间差异较大,个体内不同次呜叫也有差异,但小于个体间的差异。 |
| 10. | In choice test , all females from four populations reared on both 200n and 0n rice plants preferred significantly to feed and oviposite on plants with high nitrogen content , while no marked difference in nymph feeding preference was found among the rice plants 结果表明,无论褐飞虱饲养在高氮和低氮稻株上其雌成虫均显著偏爱在含氮量高的稻株上取食和产卵,而若虫对不同含氮量稻株的取食选择性无显著差异。 |