brown planthopper
常见例句
- In addition, the population density of some pests such as rice case worm and brown rice plant-hopper etc decreased by 50-60%in silicon-treated areas.
因而处理区内稻纵卷叶螟和褐稻虱等害虫的种群密度分别比对照区下降5-6成。 - The influence on physiological-biochemical characteristic of rice aerial part after bite by brown paddy plant hopper has many researches, but research of rice under ground portion has few.
褐飞虱取食后对水稻地上部生理生化影响的研究较多，而对地下根系的研究较少。 返回 brown planthopper