Economic Injury Level of Bemisia tabaci (Gennadius) (Homoptera: Aleyrodidae) on Oriental Melon (Cucumis melo L.) in Greenhouse

참외에서 담배가루이의 경제적 피해수준 설정

  • Park, Seok-Hee (Gyeongsangbuk-Do Agricultural Research and Extension Services) ;
  • Lee, Jung-Hwan (Gyeongsangbuk-Do Agricultural Research and Extension Services) ;
  • Woo, Jin-Ha (Gyeongsangbuk-Do Agricultural Research and Extension Services) ;
  • Choi, Seong-Yong (Gyeongsangbuk-Do Agricultural Research and Extension Services) ;
  • Park, So-Deuk (Gyeongsangbuk-Do Agricultural Research and Extension Services) ;
  • Park, Hong-Hyun (Crop Protection Division, National Academy of Agricultural Science, RDA)
  • 박석희 (경상북도농업기술원 농업환경연구과) ;
  • 이중환 (경상북도농업기술원 농업환경연구과) ;
  • 우진하 (경상북도농업기술원 농업환경연구과) ;
  • 최성용 (경상북도농업기술원 농업환경연구과) ;
  • 박소득 (경상북도농업기술원 농업환경연구과) ;
  • 박홍현 (국립농업과학원 작물보호과)
  • Received : 2014.03.07
  • Accepted : 2014.09.11
  • Published : 2014.09.30


This study was conducted to develop economic injury level (EIL) of sweet potato whitefly, Bemisia tabaci, on oriental melon. In greenhouse, seedlings of oriental melon were transplanted at June 8, 2010 and we inoculated adult B. tabaci with the density of 0, 1, 5, 10, or 20 per ten leaves at July 14. Adult of B. tabaci increased approximately twenty five-fold at 60 days after inoculation in the plot of 20 adults per ten leaves. The damages on leaves and fruits by B. tabaci were started to appear at 20 days after inoculation, and the damage rates of leaves or fruits were 28.5 or 31.5 percent at 60 days after inoculation, respectively, in the plot of inoculation with 20 adults per ten leaves. The yield of oriental melon was reduced as the inoculation density of B. tabaci increased, and the relationship between inoculation density of B. tabaci and the rate of damaged fruit could be described by a linear regression Y = 0.961x + 0.0562 ($R^2$ = 0.976). Based on the relationship, the economic injury level was 5.1 adults of B. tabaci per leaf and the control threshold estimated by 80% level of economic injury level was 4.1 adults per leaf for control of sweet potato whitefly.


Supported by : 농촌진흥청


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