众所周知,农作物及其繁殖材料在生长和贮藏期间,都会受到相应的病、虫、草、鼠、鸟、兽等有害生物的侵害,引起产量下降,品质变劣和明显的经济损失。在那些种类众多的有害生物中,以病、虫、杂草为例,有的是普遍发生的,需要适时进行防治;有的只在局部地方发生,但对生产危害性大,缺乏防治方法,并能随种苗调运携带传播。植物检疫就是根据国家颁布的“植物检疫条例”和为贯彻这一条例而制定的实施办法,对上述后一类的 It is well-known that crops and their propagation materials are infested by pests such as diseases, insects, grasses, rats, birds, beasts and other during their growth and storage, resulting in decreased production, worse quality and obvious economic losses. Among the many types of pests, diseases, insects and weeds, for example, are common occurrences and require timely prevention and control; others occur only locally but are harmful to production and lack of prevention and control measures, and can With the seedlings carry carry spread. Phytosanitary is based on the State issued the “Plant Quarantine Ordinance” and the implementation of this Ordinance enacted the implementation of measures for the latter category