Not to be left behind are the disease-spreading pests, about 100 species of which have become immune to a variety of insecticides now in use.
传播疾病的害虫也不甘落后，其中约有100种对目前使用的各种杀虫剂有了免疫力。
2
The successful experience of spreading a variety to be applied in production should be depend on combining the elite cultivar with cultural technique and cropping system.
一个品种在生产上应用推广的成功需要借助于良种、良法、以及与之适宜的耕作制度的配套。
3
Setting up the market service system such as technological consultation, manages, accident problems resolving, is the long-term guarantee for new varietyspreading.