Dynamics of Bactrocera dorsalis in Jujube Orchards in Dry Hot Valley of Yuanmou

Bactrocera dors alis is one of the important insect pests harm Ziziphus mauritiana Lam.cv.Liuxiang and Ziziphus jujube.cv Jinsixiaozao in the dry hot valley.The text conduct a comprehensive analysis on the annual dynamics survey,climatic factors,food resources and host plants of Bactrocera dorsalis adult in the typical dry-hot valley of Yuanmou.The results show that the Bactrocera dorsalis in Ziziphus mauritiana Lam.cv.Liuxiang trap significantly higher than Ziziphus jujube.cv Jinsixiaozao;Bactrocera dorsalis adults in Ziziphus mauritiana Lam.cv.Liuxiang and Ziziphus jujube.cv Jinsixiaozao have one(August),two(February and August) peak,the peak period is basically consistent with fruit maturity;the monthly mean temperature,monthly rainfall and food source host plants are the main factors of population fluctuations.To master the changes in the population dynamics of Bactrocera dorsalis by two kinds of Zaoyuan monitoring,can timely provide a theoretical basis for Bactrocera dorsalis control period.