酒泉市棉花病虫害发生规律与气象条件的初步分析

Analysis on the Rule of Pest Propagation to Cotton and the Climatic Factor in Jiuquan City

利用敦煌、安西、金塔三地气象和病虫害资料,应用农业气象中的统计方法[1],分析了棉花病虫繁殖危害与气象条件的关系。结论是:影响棉花产量及品质的主要虫害是棉蚜、棉铃虫、棉红蜘蛛;影响虫害繁殖的主要气象因子是温度、湿度、降水等。可以通过采取生态措施和工程措施改善病虫害对棉花的威胁程度。

According to the observed meteorology data, plant diseases and insect pests＇ data of Dunhuang, Anxi and Jinta weather stations of Jiuquan meteorological bureau, to apply the statistics methods of agrometeorological, the relationship between the disaster of pest propagation to cotton and climatic condition was analyzed. The conclusions indicated that the yield and quality of cotton were affected by cotton aphid, cotton bollworm and cotton panonychus mostly, the main meteorology factor influenced the insect pests increasing were temperature, humidity and rainfall etc. The ecosystem measure and the engineering measure can be taken to improve the threat of cotton diseases and insect pests.