溫度對番荔枝斑螟蛾發育之影響

番荔枝斑螟蛾（Anonaepestis bengalella Ragonot）係番荔枝重要害蟲，於室內20、23、25、28及30℃等不同定溫下飼育，各蟲期發育所需天數為卵期7.2～2.9天，幼蟲期80.2～33.7天，蛹期12.8～6.8天，完成一世代需45.0～112.7天；其發育零點分別為13.8，12.7及10.1℃，而有效積溫分別為47.9，580.3及134.0日度，完成一世代需764.1日度。由田間消長調查及有效積溫推算本蟲年發生約5～6代，各世代成蟲分別於3，5，7，9及11月等出現；老齡幼蟲有效活動溫度帶為9.1～35.2℃，9.1℃以下為不適低溫，4.1℃以下為致死低溫，的。40.6℃為高溫不活動帶，49.3℃為致死高溫。由田間最低氣溫與各蟲期發育零點比較可知該蟲以老齡幼蟲或蛹越冬係使其族群存活的最佳策略。

關鍵字

番荔枝斑螟蛾；發育；溫度

並列摘要

The atismoth borer, Anonaepestis bengaIella Rogonot, was major pest on sugar apple in Taitung district. The egg larvae and pupa of A. bengalella were reared respectively urder 20, 23, 25, 28 and 30 °C in growth chambers with 80±5% relative humidity and 12L:12D photoperiod. It would find the egg, larval pupal stages and completing a generation from 7.2 to 2.9 days, 80.2 to 33.7 days, 12.8 to 6.8 days and 112.7 to 45.0 days, respectively. To estimate the threshold temperature of development were 13.8, 12.7, 10.1 and, 13.2 °C, respectively, and the effective accumulated temperature were 47.9, 580.3, 134.0 and 764.1 day degree, respectively. By using the effective accumulated temperature and the fluctuation of A. bengalella in orchards could show that it had about five generations a year in Taitung district of Taiwan, and the adults from the first to fifth generation appeared on March, May, July, Sept, and Nov., respectively, and the data could be used for prediction of fluctuation of A. begalella. We also found that the optimum temp, low deadly temp, and high deadly temp zone of the old instar larvae were from 9.1 to 35.2, 4.1 and 49.3 °C, respectively. By using the effective accumulated temp, of pupal stage and the lowest air temp, of orchards from 1985 to 1987 could find that it was the best survival for this insect making pupa stage overwinter.

並列關鍵字

Anonaepestis bengalella ； Development ； Temperature

國際替代計量

溫度對番荔枝斑螟蛾發育之影響

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