1·There is no pest here.
这里没有害虫。
2·The destiny of the pest in the chestnut is not known before reaching the destination.
栗子中害虫的命运在到达目的地之前是未知的。
3·The cane toad itself became a pest and has destroyed much of the wildlife on that continent.
蔗蜍本身变成了一种害虫，并且已经破坏了那片大陆上的很多野生动物。
4·This sea-water also kills off the greedy giant apple snail, an introduced pest that feeds on young rice plants.
海水也杀死了贪婪的巨头苹果蜗牛，这种外来害虫以水稻幼苗为食。
5·Ogbeh says experts are investigating how to control the pest's damage and prevent its spread, which has gone largely unchecked until now.
奥格贝说，专家们正在研究如何控制这种害虫的危害，并防止其蔓延，直到现在，这种情况基本上还没有得到控制。
1·Ragwort was accidentally introduced to New Zealand in the late nineteenth century and, like so many invading foreign species, quickly became a pest.
19世纪末，狗舌草被偶然引入新西兰，像许多入侵的外来物种一样，它很快就变成了一种有害生物。
2·When collecting germplasm, local plant quarantine procedures, for example pest risk assessment, should guide ultimate action.
在收集种质时，最终行动应遵循当地植物检疫程序，如有害生物风险评估。
3·Mr Younis learned field ecology in a farmer field School, a method pioneered by FAO and first introduced in Pakistan to train cotton farmers in Integrated Pest Management (IPM).
尤尼斯先生在农民田间学校学习了有关田间生态学的知识。农民田间学校是粮农组织开创的一种方法，首先在巴基斯坦采用，对棉农进行“有害生物综合防治”(IPM)的培训。
4·The Web GIS of invasive pest risk assessment was developed integrated GIS and mathematical model.
按照专业模型与GIS的事例思路建立了外来有害生物风险分析地理信息系统。
5·Chapter four summarized the main means of Pest Risk Analysis measure.
第四章总结了有害生物风险分析的主要方法。