• 作者： 姚安莉; 徐鶯美; 李文蓉
• 作者服務機構： 中央研究院動物研究所
• 中文摘要： 本研究工作為針對不孕性果實蠅（Dacus dorsalis Hendel）的分佈能力而分為以下三項進行試驗：即平面距離分佈測定、越河能力及飛行高度之測定。由去年在本省中北部不同地區觀察結果可知，果實蠅分佈的多少，依誘殺器附近之環境不同而異，如其有可棲靠之寄主植物多時，則野生蟲口發生密度大，且不孕性果實蠅容易分佈。果實蠅亦具有越過水面的能力；其飛行高度則亦視誘殺器所在位置之鄰近環境因素而定。
• 英文摘要： 　This study is concerned with the movingabilities of sterile oriental fruit fly (Dacus dorsalisHendel). Experiments were designed to test theabilities for horizontal movement, flying acrossriver, and vertical movement. The results con-veyed that fruit flies tended to move away fromsettlement areas or wet peddy fields but towardsPlaces where host trees were dense. That fruitflies can fly across surface water was also con-firmed. When methyl eugenol was used as atrapping agent, the effective radius was foundto be from at least 200 meters, to 2.8 kilometers.Therefore, for successful suppression of fruitflies, an interval of less than 3 kilometers betweenadjacent traps was recommended.
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