桃蚜种群消长规律预测模型的建立与应用  

Establishment and Application of Prediction Model of Myzus persicae Population Fluctuation

作　　者：刘艳红[1,2] 张权义 贾栋[1] LIU Yanhong;ZHANG Quanyi;JIA Dong(College of Agronomy,Shanxi Agricultural University,Taigu 030801,China;Key Laboratory of IPM of Crop Pests on the Northwest Loess Plateaus of Ministry of Agriculture,State Key Laboratory of Crop Stress Biology for Arid Areas,Northwest A & F University,Yangling 712100,China;College of Art & Science,Shanxi Agricultural University,Taigu 030801,China)

机构地区：[1]山西农业大学农学院,山西太谷030801 [2]西北农林科技大学旱区作物逆境生物学国家重点实验室,农业部西北黄土高原作物有害生物综合治理重点实验室,陕西杨凌712100 [3]山西农业大学文理学院,山西太谷030801

出　　处：《山西农业科学》2019年第7期1246-1249,共4页Journal of Shanxi Agricultural Sciences

基　　金：山西省优秀博士来晋工作奖励资金科研项目(SXYBKY2018016);山西省重点研发计划项目(201803D221004-6);山西农业大学科技创新基金项目(2018YJ13)

摘　　要：为了科学确定桃蚜的防治适期,提高其防治效果,根据桃蚜在辣椒上的生长发育数据建立了桃蚜种群的消长规律模型。该模型是一个分段函数,其中,第1阶段只有若虫,为常函数;第2阶段是若虫和成虫共存期,为一阶线性微分方程组,主要根据桃蚜在辣椒上的发育时间、羽化率和死亡率构建;第3阶段只有成虫,成虫数量是一个递减的复合函数。将该模型应用于甘蓝上桃蚜种群变化规律的预测,结果显示,桃蚜在甘蓝上的实际消长规律与模型吻合程度较高。表明所建模型可以用于桃蚜种群消长规律的预测预报。To determine the appropriate control period of Myzus persicae Sulzer,enhance the control efficiency,a population fluctuation model for this aphid was built based on the growth and developmental data of Myzus persicae rearing on pepper.The model was a section function,in which the first phase just containing nymphs was a constant function,the second phase containing both nymphs and adults was a set of linear first-order ordinary differential equations based mainly on the developmental time,emergence rate and mortality rate of the aphid rearing in the laboratory on pepper,and the third phase just containing adults was a decreasing compound function.When the model was applicated to predict the change rule of Myzus persicae population rearing on cabbage,the result found that the real fluctuation rule by experiment matched well with the rule predicted by the model.It suggests that the model established can be used to predict the fluctuation rule of Myzus persicae population rearing on other host plants.

关 键 词：桃蚜 消长模型 微分方程 存活率 羽化率 

分 类 号：S431.1[农业科学—农业昆虫与害虫防治] S436.621.21[农业科学—植物保护]