main pests and diseases

• 主要病虫害

main pests and diseases的用法和样例：

例句

1. Major Diseases and Pest and its control in Phellodendron sp.
   黄柏主要病虫害及防治技术。
2. The Main Disease and Pest Control Countermeasures of Cycas spp.
   苏铁主要病虫害及其防治对策。