不同餵食處理下之瓜實蠅(Dacus cucurbitae Coquillett),對糖及酪蛋白腖B之引誘反應不同,只餵食糖的個體,對酪蛋白腖B之反應較為強烈,反之只餵食酪蛋白腖B者,對糖之反應則較強烈。餵食糖及糖+酪蛋白腖B之瓜實蠅,第2~3日齡及第15~17日齡成蟲,對食物引誘劑(9M1TRE)之引誘反應間無顯著差異,但餵食糖的第7~9日齡正值性成熟期的成蟲,對含蛋白質之9M1TRE的引誘反應明顯增加。瓜實蠅經1天饑餓後,對9M1TRE之引誘反應,顯著較未饑餓者為高。瓜實蠅密度過高時,會降低其對9M1TRE之誘殺率。密度相同而活動空間不同時,9M1TRE於小空間中之誘殺效果較大空間者為佳。
The response of melon flies (Dacus cucurbitae Coquillett) to sugar and bacto-peptone varied with feeding histories. Individuals with sugar-feeding experience responsed to bacto-peptone more strongly than to sugar, and vice versa. The attractiveness of food attractant (9M1TRE) to melon flies previously fed on sugar and sugar+bacto-peptone was not significantly different for flies 2~3 or for 15~17 days old. Flies 7~9 days old, originally fed only on sugar and undergoing sexual maturation were significantly attracted by 9M1TRE containing proteins. Flies starved for one day were more responsive to the attraction of 9M1TRE than the non-starved ones. The attractiveness of 9M1TRE to melon flies decreased when the fly density was too high. However with the same density, the flies captured significantly more in a smaller activity space than in a larger space.