论文部分内容阅读
山东省是全国苹果生产基地,种植面积和产量均居全国首位,病虫害是影响苹果生产的重要因素。据统计,每年因病虫为害造成的苹果损失在85万吨以上,占总产量的37.8%,品质也受到严重影响。为研究苹果病虫害的防治问题,在总结各地经验的基础上,从果园生态系统的整体出发,本着经济、有效、安全、简便的原则,经过多年的工作,于1990年制订了全省苹果病虫害综合防治技
Shandong Province is the country’s apple production base, planting area and output rank first in the country, pests and diseases are an important factor affecting apple production. According to statistics, the annual loss of apple caused by pests and diseases is more than 850,000 tons, accounting for 37.8% of the total output, and the quality is also seriously affected. In order to study the prevention and control of apple pests and diseases, on the basis of summing up experiences from all over the country, starting from the whole orchard ecosystem, based on the principle of economy, efficiency, safety and simplicity, after years of work, Integrated control technology