嘉義地區楊桃花姬捲葉蛾之生活史與生態

Abstract

楊桃花姬捲葉蛾 (Eucosma notanthes Meyrick) 為目前楊桃最重要之果實蛀蟲，在臺灣各地周年發生為害。此蟲每天 5-7 時及 16-20 時較為活躍，在夜間 21 時至凌晨 4 時之間則甚少活動。依田間族群消長及室內飼育之結果，推定在嘉義地區每年可發生八個世代，而 7-11 月間為其族群高峰期。 The carambola fruit borer, Eucosma notanthes Meyrick, is the most important insect pest of carambola. The borer may attack carambola fruits all year round, but its population occur peaks during July to November. Field observation and laboratory rearing results suggest that there are 8 generations of the borer per year in Chia-Yi region. Adults of the borer are more active during 5-7 an am and 4-8 pm and they remain almost inactive from 9 pm to 4 am.