中国是农业大国,作物种类很多,许多作物种植面积很大,分布在不同的生态区域,在其生产环境内受多种的有害生物危害,影响正常的生产,甚至造成巨大损失。据有关资料表明,对农业生产为害重的病害有700余种,害虫、害螨800多种,因此,及时、有效地防治这些病虫是非常必要的。我国的植保部门每年都在年初发布当年重要病、虫监测预报,对影响农业生产的病、虫作出发生情况预测。这是指导适时防治,调配、安排所需农药的重要依据,是一种长期预报。此后还会对重大的虫情作中、近期预报,这些资料有利于各地及时掌握未来的发生动态,提早做好各种安排,对农业生产、农药生产与供应均有重要作用。农药是防治病、虫的重要武器,更是 China is a big agricultural country with many kinds of crops. Many crops are planted in large areas and distributed in different ecological regions. They are endangered by many kinds of pests in their production environments, affecting normal production and even causing huge losses. According to the relevant data, there are over 700 species of pests and pest mites harmed by agricultural production. Therefore, it is necessary to control these pests timely and effectively. China’s plant protection department every year at the beginning of the year issued a major disease, insect monitoring and forecast, affecting the agricultural production of diseases and pests to make the occurrence of the situation predicted. This is an important basis for guiding the timely prevention, deployment and arrangement of the required pesticides and is a long-term forecast. After that, we will also make medium and short-term forecasts of major pests. These materials will help us grasp the future developments in various places in time and make arrangements in advance so that they will play an important role in agricultural production and pesticide production and supply. Pesticides are an important weapon for disease prevention and insect pests and more so