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济宁地区农作物病虫害种类多、分布广。据不完全统计,建国以来发生过的农作物病害有189种,虫害301种,病虫合计490种。重发生年发生面积3000万亩次左右,为全区789万亩耕地的4倍左右,轻发生年1500万亩次左右。分析全区三十年来农作物主要病虫害的发生动态及其消长演替原因,从中找出规律,对搞好防治工作,保障农业丰收,有着重要意义。
There are many kinds of crop diseases and insect pests in Jining area and are widely distributed. According to incomplete statistics, there have been 189 crop diseases since the founding of the PRC, 301 pests, and 490 pests and diseases. Occurrence of annual occurrence area of 30 million mu times, for the whole area of 789 mu of cultivated land about 4 times, light year of about 15 million mu times. It is of great significance to analyze the occurrence of the major pests and diseases in the whole region and the reasons for the succession and decline of the crop diseases and pests in the whole region in the past 30 years and to find out the regularities from the perspective of doing well prevention and control and ensuring the harvest of agriculture.