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journal1 ›› 2019, Vol. 35 ›› Issue (1): 1-8.DOI: 10.16409/j.cnki.2095-039x.2019.01.004

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Population Dynamics of Hoverflies in Non-crop Habitats Surrounding Cotton Fields in Northern Xinjiang

FU Yifeng1, LIU Bing2, LUO Yanliang1, LI Xueling1, WANG Peiling1, LU Yanhui2   

  1. 1. Xinjiang Oasis Agricultural Pest Management and Plant Protection Resource Utilization Autonomous Region Key Laboratory of Xinjiang/Xinjiang Construction Corps Oasis Ecological Agriculture Department Jointly Established National Key Laboratory Training Base/Agricultural College of Shihezi University, Xinjiang 832000, China;
    2. State Key Laboratory of Biology of Plant Diseases and Insect Pests/Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
  • Received:2018-04-08 Online:2019-02-08 Published:2019-01-31

Abstract: In 2016 and 2017, the population dynamics of hoverflies in non-crop habitats (including 13 plant species from 9 families) surrounding cotton fields were monitored using a sweeping method in northern Xinjiang. The population densities of hoverflies varied greatly on different plants. However, the populations usually peaked during the flowering periods of the plants and co-occurred in a follow-up pattern with aphid population dynamics. The preferred plant species of hoverflies varied with season. From May to June, high hoverfly densities were found on Sisymbrium loeselii and Apocynum venetum. In July and August, the densities were high on Suaeda glauca, Cannabis sativa and Acroptilon repens. While in September, hoverflies shifted to other plants such as Glycyrrhiza uralensis, A. repens and A. venetum. The results are significant for utilizing non-crop habitats to enhance the hoverfly abundance and their potential biocontrol services in cotton planting systems.

Key words: non-crop habitat, hoverfly, preferred plant, population dynamics

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