When farmer spray poison to kill plant pests , poison is sent into the air the water and the soil . 当农民为了杀死害虫而喷洒农药的时候,有毒物就被排放到空气中,水里和土壤里。
Development of alternative pest control methods will no doubt decrease the need for chemical pesticides in the future . 虫害防治方法的新发展,无疑将使未来的化学农药需要量大大减少。
In considering chemical resistance, it is not enough to grind up the entire plant and look for allomones against insect pests . 在研究化学抗性时,研碎全株并寻找抗虫的利已激素是不够的。
It spread through france, where wild rabbits are not generally regarded as a pest but as a sport and a useful food supply . 法国人普遍认为,野兔并不是有害动物,而是取乐的猎物和有用的事物来源。
It spread through france , where wild rabbits are not generally regarded as a pest but as a sport and a useful food supply . 它蔓延到整个法国,法国一般不把野兔当作有害动物,而把它当作一种取乐的猎物和有用的食物来源。
Influence of fire on the occurrence of forest pest 林火对森林虫害发生影响的研究
Common name for the pest control chemical - " spinosad Spinosad杀虫剂通用名称
Conservation agriculture - integrated pest management 保护性农业-综合病虫害管理
Control of pest in moth orhid and its quarantine 蝴蝶兰有害生物防治及其检疫措施