Mahmood F
Entomology and Nematology Department, University of Florida, Gainesville 32611-0620, USA.
J Am Mosq Control Assoc. 1998 Mar;14(1):69-71.
This study presents the effect of differences in the feeding rates of Aedes aegypti and Anopheles albimanus on their susceptibilities to Bacillus thuringiensis israelensis. Aedes aegypti was more susceptible than An. albimanus because of its faster rate of feeding. Aedes aegypti ingested 11.5 times more spores than did An. albimanus, resulting in lower LT50 values. Anopheles albimanus larvae fed at a slower rate and required fewer spores than Ae. aegypti to induce 50% mortality. These findings support earlier reports of much higher concentrations of B. thuringiensis required to kill various anopheline species.
本研究呈现了埃及伊蚊和白纹伊蚊摄食速率差异对其感染苏云金芽孢杆菌以色列亚种易感性的影响。埃及伊蚊比白纹伊蚊更易感，因为其摄食速率更快。埃及伊蚊摄入的孢子数量比白纹伊蚊多11.5倍，导致其半数致死时间（LT50）值更低。白纹伊蚊幼虫摄食速率较慢，诱导50%死亡率所需的孢子数量比埃及伊蚊少。这些发现支持了早期的报告，即杀死各种按蚊物种需要更高浓度的苏云金芽孢杆菌。
