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首页> 外文期刊>Journal of Economic Entomology >Mortality of adult Stomoxys calcitrans fed isolates of Bacillus thuringiensis
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Mortality of adult Stomoxys calcitrans fed isolates of Bacillus thuringiensis

机译:苏云金芽孢杆菌饲喂苏木精成虫分离株的死亡率

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摘要

We examined the ability of five isolates of Bacillus thuringiensis Berliner to cause mortality in adult stable flies, Stomoxys calcitrans (L.). Isolates Bacillus thuringiensis tolworthi 4L3 (serotype 9), Bacillus thuringiensis darmstadiensis 4M1 (serotype 10a10b), Bacillus thuringiensis thompsoni 4O1 (serotype 12), Bacillus thuringiensis thuringiensis HD2 (serotype 1), and Bacillus thuringiensis kurstaki HD945 (serotype 3a3b3c) were administered to adult flies in diets containing blood only, sugar only, and both sugar and blood combined. B. t. tolworthi 4L3 had no effect on adult mortality regardless of the feeding substrate. The remaining isolates tended to cause the greatest mortality when administered in blood alone. B. t. thompsoni 4O1 was the only isolate that consistently caused adult mortality when fed in blood at concentrations ranging from 0.21 to 50.0 g of protein per ml of blood. This isolate also caused mortality when applied topically. The time to 50% mortality declined with dose and reached a lower asymptote at ≈1.3 d at an oral dose of 8.75 g/ml and at a topical dose of 0.14 g per fly.
机译:我们检查了苏云金芽胞杆菌的五个分离株引起成年稳定蝇Stomoxys calcitrans(L.)死亡的能力。分离出苏云金芽孢杆菌托尔沃希杆菌4L3(血清型9),苏云金芽孢杆菌达姆斯塔迪斯霉4M1(血清型10a10b),苏云金芽孢杆菌thompsoni菌4O1(血清型12),苏云金芽孢杆菌苏云金芽孢杆菌HD2(血清型1)和成年芽孢杆菌3只能吃含血液,含糖以及含糖和血液的食物。 B.托尔沃奇4L3对成人死亡率没有影响,无论其饲喂基质如何。当单独在血液中给药时,其余分离株往往导致最大的死亡率。 B.当以每毫升血液中0.21至50.0克蛋白质的浓度进食血液时,thompsoni 4O1是唯一一贯导致成人死亡的分离物。当局部使用时,这种分离物也引起死亡率。死亡率达到50%的时间随剂量的增加而下降,在口服剂量8.75 g / ml和每只果蝇0.14 g的局部剂量下,≈1.3d达到较低的渐近线。

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