pest

• Are sedentary pests more easily controlled than the active pests ?
  固定生活的害虫比活动的害虫更容易防治吗？
• The use of integrated pest management will expand in the twenty-first century .
  在二十一世纪，害虫综合治理的应用将扩大。
• Pest control is one of the major areas of concern in intensive agriculture .
  病虫害防治是集约型农业所关心的主要方面之一。
• The ability of insects to eat man's pests has made some insects his allies .
  以人类害虫为食的昆虫使它自己成了人类的朋友。
• Biological control is an ecologically sound approach to pest suppression .
  生物防治是一种生态学上的很好解决为害物的方法。
• There has been a further shift toward the development of integrated systems of pest control .
  研究方向进而转向发展虫害的综合防治体系。
• In the spring along the mississippi river, cnephia pecuarum is a serious livestock pest .
  春季密西西比河边的水牛蚋孳生，对家畜为害严重。
• In many cases, plants infected with nematodes are more susceptible to other pests and disease .
  在许多情况下，感染虫的植株更易感染其它虫害和病害。
• Farmers add fertilizer to the soil to make plants grow better , or spray poison to kill plant pests .
  农民为了使作物长得更好而给土壤施化肥或者为了杀死害虫而喷撒农药。
• Attention must be given to identifying the optimum pest population that will permit differentiation among genotypes .
  要注意确定最适的害虫种群，使不同的遗传型能够辨别。