Eradication Programs of Two Sweetpotato Pests, Cylas formicarius and Euscepes postfasciatus, in Japan with Special Reference to their Dispersal Ability

JARQ : Japan Agricultural Research Quarterly
ISSN 00213551
書誌レコードID(総合目録DB) AA0068709X
35-04-03.pdf583.48 KB

Eradication programs are being implemented for 2 sweetpotato weevil pests, Cylas formicarius and Euscepes postfasciatus, in the Ryukyu Islands located in the southernmost part of Japan by the application of the sterile insect technique (SIT). As it is essential for the implementation of the programs to assess the dispersal ability of the weevils, recent studies were reviewed. Both the flight and walking ability of C. formicarius was much higher in males than in females when determined in the laboratory. Synthesized sex pheromone of C. formicarius has been used as a strong lure to capture the males in the field. Results of the mark-recapture experiments suggest that a distance of at least 2 km is needed for the range of the buffer zone to separate the SIT target area from others. Since E. postfasciatus is unable to fly, only the walking ability was evaluated in the laboratory, indicating that the females exhibited a fairly higher locomotion activity compared with the males. Since no effective attractant for E. postfasciatus has been identified yet, information on the dispersal activity in the field is limited. Fundamental studies should be conducted to determine the dispersal ability of both weevil pests to implement successfully the eradication programs.

作成者 Seiichi MORIYA Takahisa MIYATAKE



sterile insect technique (SIT)

sex pheromone

公開者 Japan International Research Center for Agricultural Sciences
国立情報学研究所メタデータ主題語彙集(資源タイプ) Journal Article
開始ページ 227
終了ページ 234
DOI 10.6090/jarq.35.227
権利 Japan International Research Center for Agricultural Sciences
言語 eng