桃折心蟲（Grapholita molesta(Busck)）（Lepidoptera: Tortricidae）性費洛蒙誘捕系統及交配干擾防治試驗

"Sex pheromone trapping system for the oriental fruit moth, Grapholita molesta, and control with mating disruption in peach orchards in Taiwan"

桃折心蟲（Grapholita molesta（Busck））性費洛蒙誘捕系統之研發，於1999年4-5月間於台中縣新社鄉桃子果園進行不同性費洛蒙誘餌配方Z8-12:Ac/E8-12：Ac/Z8-12:OH = 96/4/10（A）、94/6/10（B）、100/0/100（C）、外購桃折心蟲性費洛蒙誘餌（OFM）及粗腳姬捲葉蛾（Cryptophlebia ombrodelta）性費洛蒙誘餌（CO）對桃折心蟲之誘蟲效果比較。結果顯示配方A與B等兩種性費洛蒙誘餌對桃折心蟲的誘蟲活性與外購桃折心蟲性費洛蒙誘餌（OFM）之誘蟲百分率無顯著差異，三者之誘蟲百分率分別為35.6、32.3及31.3%。於誘蟲期間誘得三種姬捲葉蛾科害蟲，以桃折心蟲比例最高，其次為花姬捲葉蛾（Cydia notanthes）及粗腳姬捲葉蛾。不同型式誘蟲器對桃折心蟲之誘捕效率於1993年9 - 10月間於苗栗縣卓蘭鎮桃子果園進行試驗，以三層式寶特瓶誘蟲器與黏膠式誘蟲器對桃折心蟲其顯著之誘捕效果，誘蟲活性分別為39.1及45.9%;中改式及制式誘蟲器對桃折心蟲之誘捕效果明顯較低，誘蟲活性僅5.9及9.2%。2002至2003年間進一步比較花姬捲葉蛾袋型組合式誘蟲器與三層式寶特瓶誘蟲器對桃折心蟲的誘捕效果，經三次結果顯示此兩種誘蟲器對挑折心蟲的誘捕效率無顯著差異。於1994及2007年間以性費洛蒙誘蟲器調查桃折心蟲在台灣中部之發生情形，結果顯示桃折心蟲普遍發生於桃、梅、李、梨及蘋果等薔薇科果園中。以Z8 - 12 : Ac交配干擾劑於0.1 ha桃子果園中進行交配干擾防治試驗，園內設置120個交配干擾劑，使用量為53.28 g / ha，其結果顯示對桃折心蟲及粗腳姬捲葉蛾具有誘引抑制效果。

"Researches on sex pheromone trapping systems, including lure formula and trap types, for the oriental fruit moth, Grapholita molesta (Busck), were conducted from 1993 to 2003 at peach orchards in Central Taiwan. The lure attractiveness using different blends of Z8-12: Ac/E8-12:Ac/Z8-12:OH, 96/4/10 (A), 94/6/10 (B), 100/0/100 (C), and OFM and CO to male G. molesta were conducted in peach orchards at Sinshe Township, Taichung County, Taiwan, from April 1^(st) to May 20^(th), 1999. The results showed that the attractiveness of lures A and B, showed no difference from lure OFM, which was were more attractive to male G. molesta than other lures. The catch percentage for lures A, B, and OFM for male G. molesta were 35.6 , 32.3, and 31.3%, respectively. During the trapping trials, three species of Tortricidae were caught with pheromone traps in peach orchards. Among them, the number of G. molesta caught was greater than that of Cydia notanthes Meyrick, and Cryptophlebia ombrodelta. The trapping efficiency of four traps, including standard trap, C-DAIS trap, 3-layer- PET-bottle trap, and wing sticky trap, baited with OFM lure on G. molesta were compared in peach orchards at Jhoulan Township, Miaoli County, Taiwan, from September 17^(th) to October 22^(nd), 1993. The results showed that the percentage of male G. molesta caught in the 3-layer-PET-bottle trap and wing sticky trap were 39.1 and 45.9%, higher than the standard trap (5.9%) and C-DIAS trap (9.2%). The efficiency of CFB composed bag trap in capturing male G. molesta was compared with the 3-layer-PET-bottle trap from 2002 to 2003 in peach orchards in Caotun Township, Nantou County and Sinshe Township, Taichung County, Taiwan. These two trap types were not different based on the data from three tests. The oriental fruit moth, G. molesta, commonly occurs in peaches, Japanese apricots, plums, pears and apple orchards in Central Taiwan, as surveyed using sex pheromones in 1994 and 2007. Orchard treatment with 28-12: Ac at the 53.28 g/ha rate can inhibit the sex pheromone attractiveness of G. molesta and C. ombrodelta."