本文概述了我国已经种植和可以开发的热带作物种类、以及现有作物已发生的病害,简要地介绍了国外热带作物的危险性病害和我国近年新发生的病害情况。分析了只讲引种、调种,忽视植物检疫给生产带来的损失的事例和原因,并据此提出了加强种苗检疫的四点建议。 This article summarizes the types of tropical crops that have been planted and can be developed in our country, as well as the diseases that have occurred in existing crops. It briefly introduces the dangerous diseases of tropical crops in foreign countries and the new diseases that have occurred in recent years in China. This paper analyzes the cases and causes of the losses caused by the introduction, adjustment and neglect of plant quarantine, and puts forward four suggestions on how to strengthen the quarantine of seedlings.