控制害虫的危害程度,取决于气候条件、农药效果、作物品种、各种耕种形式的费用、劳动条件及农产品的价格。在此笔者将就日本主要农作物的虫害情况、现今政府指导的作物保护体系、虫害防治技术的现状和将来问题作一概述。首先,笔者对虫害发生、虫害防治和主要作物上的虫害情况作一简介。水稻虽然,日本人民对稻米的消耗下降到每人每年平均75千克(为三十年代的55％),但仍不失为日本的主要食品。在日本,稻米是简单地烧煮食用的,故其味道、香味、外观十分重 The extent of pest control depends on climatic conditions, pesticide effects, crop varieties, costs of various forms of cultivation, working conditions and prices of agricultural products. Here I will summarize the pest situation of the main crops in Japan, the current state-sponsored crop protection system, the status quo and future problems of pest control technologies. First of all, I make a brief introduction to pest occurrence, pest control and pest situation on main crops. Rice Although Japan’s consumption of rice has dropped to an average of 75 kg per person per year (55% of the 1930s), it remains the staple food in Japan. In Japan, rice is simply consumed by cooking, so its flavor, aroma and appearance are very heavy