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Estimating the immigration source of rice planthoppers, Nilaparvata lugens (Stal) and Sogatella furcifera (Horvath) (Homoptera: Delphacidae), in Taiwan

  • Huang Shou-Horng
    Department of Entomology, National Taiwan University Chiayi Agricultural Experiment Station, Taiwan Agricultural Research Institute
  • Cheng Ching-Huan
    Chiayi Agricultural Experiment Station, Taiwan Agricultural Research Institute
  • Chen Chiou-Nan
    Department of Entomology, National Taiwan University
  • Wu Wen-Jer
    Department of Entomology, National Taiwan University Research Center for Plant Medicine, National Taiwan University
  • Otuka Akira
    National Agricultural Research Center for Kyushu Okinawa Region

Bibliographic Information

Other Title
  • Estimating the immigration source of rice planthoppers, Nilaparvata lugens (Stål) and Sogatella furcifera (Horváth) (Homoptera: Delphacidae), in Taiwan

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Abstract

Since overwintering populations of brown planthopper (Nilaparvata lugens) and white-backed planthopper (Sogatella furcifera) in Taiwan are very low based on field observations, immigrant planthoppers have become the most important source of serious damage to rice crops (Oryza sativa). Backward trajectory analysis was conducted using trap catch data from 1990 to 2005 to estimate the source of immigrant planthoppers, taking into account the emigration periods and weather conditions, and showed that southern China, Vietnam and the Philippines (Luzon Island) were possible source areas. Southern China was found to be the most important source of emigration. Of all the immigration cases tested, the sources from southern China were estimated to be about 77% in the first rice crop and 65% in the second rice crop. Vietnam came second with about 37% and 56% in the first and second rice crops, respectively. Typhoons were the most important weather factor, inducing mass emigrations from China and Vietnam. Since the population properties are known to differ among the emigration regions and Taiwan, careful monitoring of these insects in the emigration sources and Taiwan is needed in order to establish better pest management practices.

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Details

  • CRID
    1390282681219022592
  • NII Article ID
    130000327193
  • NII Book ID
    AA00543238
  • DOI
    10.1303/aez.2010.521
  • ISSN
    1347605X
    00036862
  • NDL BIB ID
    10794012
  • Text Lang
    en
  • Data Source
    • JaLC
    • NDL
    • Crossref
    • CiNii Articles
    • KAKEN
  • Abstract License Flag
    Disallowed

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