Effect of Bacillus thuringiensis on feeding and energy use by Plodia interpunctella (Lepidoptera: Pyralidae) and Tribolium castaneum (Coleoptera: Tenebrionidae)
Effect of Bacillus thuringiensis on feeding and energy use by Plodia interpunctella (Lepidoptera: Pyralidae) and Tribolium castaneum (Coleoptera: Tenebrionidae)
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DOI：
10.4039/ent131433-4
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发表时间：
1999-07-01
影响因子：
0.9
通讯作者：
Morris, ON
中科院分区：
文献类型：
--
作者：
Abdel-Razek, AS;Salama, HS;Morris, ON
研究量化了用亚致死和半致死浓度苏云金芽孢杆菌 Berliner 1915（真细菌目：芽孢杆菌科）处理碎裂小麦、普通小麦 (Triticum aestivum L. (Gramineae)) 的籽粒对谷螟 (Hubner) 1813 和赤拟谷盗 (Herbst) 1797 能量消耗的影响。幼虫。确定昆虫发育过程中的累积食物消耗和排泄以及成年昆虫的重量和能量值，并估计耗氧量。在亚致死浓度（P. interpunctella 4 μ g/g 小麦，T.赤霉 250 mu g/g 小麦）和半致死浓度（P. interpunctella 18 μg/g 小麦，T.赤霉 1950 mu g/g 小麦）浓度下，发育期间的食物消耗量分别比对照减少了 9.1% 和 47.1%，P. interpunctella 和 14.4% 。对于 T.castaneum 来说，分别为 38.2%。在这些浓度下，P. interpunctella 的排泄量减少了 9.5% 和 61.5%，T. castaneum 的排泄量减少了 19.4% 和 47.3%。苏云金芽孢杆菌的增加对昆虫的食物消耗和能量利用产生负面影响。苏云金芽孢杆菌的水平低于完全控制所需的水平可能有助于保护谷物免受储藏昆虫的侵害。
Investigations were conducted to quantify the effects of treatment of cracked wheat, Triticum aestivum L. (Gramineae), kernels with sublethal and median-lethal concentrations of Bacillus thuringiensis Berliner 1915 (Eubacteriales: Bacillaceae) on the energy use by Plodia interpunctella (Hubner) 1813 and Tribolium castaneum (Herbst) 1797 larvae. Cumulative food consumption and egestion during insect development and the weight and energy values of adult insects were determined and oxygen consumption was estimated. At sublethal (4 mu g/g wheat for P. interpunctella, 250 mu g/g wheat for T. castaneum) and median-lethal (18 mu g/g wheat for P. interpunctella, 1950 mu g/g wheat for T. castaneum) concentrations, food consumption during development decreased from controls by 9.1% and 47.1%, respectively, for P. interpunctella and 14.4% and 38.2%, respectively, for T. castaneum. Egestion decreased by 9.5% and 61.5% for P. interpunctella and 19.4% and 47.3% for T. castaneum at these respective concentrations. Increasing B. thuringiensis had negative effects on food consumption and energy use by the insects. Levels of B. thuringiensis lower than required for complete control may assist in protecting grain from stored-product insects.