Latest Cover

Online Office

Contact Us

Issue:ISSN 2095-1353
           CN 11-6020/Q
Director:Chinese Academy of Sciences
Sponsored by:Chinese Society of Entomological;institute of zoology, chinese academy of sciences;
Address:Chaoyang District No. 1 Beichen West Road, No. 5 hospital,Beijing City,100101, China
Tel:+86-10-64807137
Fax:+86-10-64807137
Email:entom@ioz.ac.cn
Your Position :Home->Past Journals Catalog->2014年51 No.2

Morphological traits and bionomics of Jakowleffia setulosa (Jakovlev)
Author of the article:HE Jia1, 2** GAO Li-Yuan1, 2 ZHANG Rong1, 2*** CHEN Lin3 ZHU Meng-Meng1, 2
Author's Workplace:1. Institute of Plant Protection, Academy of Ningxia Agriculture and Forestry Science, Yinchuan 750002, China;2. Ningxia Key Laboratory of Plant Disease and Pest Control, Yinchuan 750002, China;3.Ningxia Entry-Exit Inspection and Quarantine Bureau,Yinchuan 750002, China
Key Words:Jakowleffia setulosa, morphological features, biological properties, life cycle
Abstract:

      [Objectives] Jakowleffia setulosa (Jakovlev), a desert insect, has migrated to agricultural areas causing serious damage in recent years. Lack of research on its basic biology has made it difficult to carry out monitoring, provide early warning of outbreaks and achieve effective control. Filling these research gaps is therefore important to the effective monitoring, forecasting and prevention of this species, and to provide a reliable basis for further research on its biology. [Methods] A combination of laboratory observation and field surveys were used to investigate the morphological and biological characteristics, life history, habits and behavior of J. setulosa[Results] J. setulosa has 2 generations and two population peaks a year in the Ningxia region in mid-May and late October. Adults enter diapause from mid-June to mid-August, and overwinter after late November. Average life expectancy for female adults was (32.14 ± 2.34)d, and for males was (28.00 ± 3.13) d. Adults had a sex ratio of 1 : 1.9 and mate multiple times. Females carry about 10 eggs with an average fecundity of about 10 to 15. Preferred foods include the seeds of Halogeton arachnoideus and other herbaceous sand plants. [Conclusion] Biological characteristics such as overwintering and diapausing as adults and strong migratory ability allow the rapid recovery of populations and the capacity to inflict serious crop damage, especially after ecological changes in the environment. Such changes in central and southern regions of Ningxia have dramatically changed the desert environment to the extent that J. setulosa no longer has enough wild host plants to sustain population recovery after the summer diapause. As a result, the species is migrating to agricultural land where it is causing significant crop damage.

CopyRight©2024 Chinese Journal of Aplied Entomology