- 期刊
- OpenAccess
溫度對洋香瓜上銀葉粉蝨發育速率之影響
Temperature-dependent Development of ＂Bemisia argentifolii＂ (Hemiptera: Aleyrodidae) on Cantaloupe
摘要
銀葉粉蝨為設施栽培洋香瓜之關鍵害蟲，本研究以洋香瓜（秋華二號）葉片飼育銀葉粉蝨，在不同溫度下觀察其生活史，分析溫度與其發育臨界等生活參數之關係，作為開發其綜合管理技術之參考依據。在16~34℃之10個定溫下，銀葉粉蝨未成熟蟲期的累積死亡率以26及28℃時最低，約為6%。在16~28℃等定溫時，銀葉粉蝨由卵至成蟲的平均發育時間，依溫度升高而縮短，約15.4~55.3日。在30~34℃時，發育時間依溫度升高而增長，約15.8~21.1日。在16~28℃時估算卵發育至成蟲的發育速率（D）與溫度（T）之直線廻歸模式為D (T)=-0.044321 + 0.003849 T，由此推算卵至成蟲的發育臨界低溫為11.5℃，而其發育總積溫259.807日度（degree-days）。以16~34℃觀察結果估算Lactin-2非線性廻歸模式中各參數之數値，其中致死溫度為37.6℃，由卵發育為成蟲的發育最適溫度（optimal temperature）為29.9℃，發育臨界低溫（low temperature threshold）為9.1℃。
並列摘要
＂Bemisia argentifolii＂ (Bellows & Perring) is a major pests of cantaloupe when cultivated in a net house. We measured its life history at the constant temperatures of 16,18,20,22,24,26,28,30,32 and 34℃ on cantaloupe, in order to evaluate the effect of temperature on development of ＂B. argentifolii＂. The results showed that the lowest mortality of ＂B. argentifolii＂ from egg to adult was 6% at 26℃ and 28℃. The whole life cycle lasted from 15.4 to 55.3 days at 16-28℃ on cantaloupe. The developmental rate (D) was increased with the increase in temperature (T), as shown in the linear regression equation: D=-0.044321 + 0.003849 T. However, when the temperature reached approximately 30 to 34℃ the developmental rate was slowed down and the life cycle lasted 15.8 to 21.1 days. The lowest developmental threshold temperature and degree-day (DD) requirements from egg to adult were 11.5℃ and 259.807 DD, respectively. A nonlinear temperature-dependent model (Lactin-2) fitted well to the data for 16 to 34℃. Accordingly, the lethal upper temperature was estimated to be 37.6℃, and the optimal temperature and developmental temperature threshold of ＂B. argentifolii＂ from egg to adult was estimated to be 29.9℃ and 9.1℃, respectively.