Trophallaxis between individual worker ants and the toxicant load in dead and live Argentine ants (Linepithema humile) in colonies exposed to fipronil and hydramethylnon experimental baits were examined using accelerator mass spectrometry (AMS). About 50% of the content of the crop containing trace levels of 14C-sucrose, 14C-hydramethylnon, and 14C-fipronil was shared between single donor and recipient ants. Dead workers and queens contained significantly more hydramethylnon (122.7 and 22.4 amol/μg ant, respectively) than did live workers and queens (96.3 and 10.4 amol/μg ant, respectively). Dead workers had significantly more fipronil (420.3 amol/μg ant) than did live workers (208.5 amol/μg ant), but dead and live queens had equal fipronil levels (59.5 and 54.3 amol/μg ant, respectively). The distribution of fipronil differed within the bodies of dead and live queens; the highest amounts of fipronil were recovered in the thorax of dead queens whereas live queens had the highest levels in the head. Resurgence of polygynous ant colonies treated with hydramethylnon baits may be explained by queen survival resulting from sublethal doses due to a slowing of trophallaxis throughout the colony. Bait strategies and dose levels for controlling insect pests need to be based on the specific toxicant properties and trophic strategies for targeting the entire colony.

中文翻译：

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阿根廷蚂蚁的杀虫剂转移效率和致命负荷。

使用促进剂质谱（AMS）检查了暴露于氟虫腈和羟甲基非实验诱饵的菌落中个体工蚁与死活阿根廷蚂蚁（Linepithema humile）中毒物负荷之间的趋向性。单一痕量的施主和受主的蚂蚁共有约50％的痕量14C-蔗糖，14C-羟甲基农胺和14C-氟苯腈。死亡工人和女王/王后所含的羟甲基农残（分别为122.7和22.4 amol /μg蚂蚁）比活着工人和女王/王后（分别为96.3和10.4 amol /μg蚂蚁）。死者的氟虫腈（420.3 amol /μg蚂蚁）比活着的工人（208.5 amol /μg蚂蚁）多得多，但死后和活着的女王的氟虫腈水平相同（分别为59.5和54.3 amol /μg蚂蚁）。在死后和活后的皇后体内，氟虫腈的分布有所不同。死后皇后的胸腔中氟虫腈的含量最高，而活后皇后的头部中含量最高。用羟甲基农饵治疗的多性雌性蚁群的复活可以解释为由于整个菌落中原虫的放慢而导致的亚致死剂量导致的女王存活。用于控制害虫的诱饵策略和剂量水平需要基于针对整个菌落的特定毒性特性和营养策略。用羟甲基农饵治疗的多性雌性蚁群的复活可以解释为由于整个菌落中原虫的放慢而导致的亚致死剂量导致的女王存活。用于控制害虫的诱饵策略和剂量水平需要基于针对整个菌落的特定毒性特性和营养策略。用羟甲基农饵治疗的多性雌性蚁群的复活可以解释为由于整个菌落中原虫的放慢而导致的亚致死剂量导致的女王存活。用于控制害虫的诱饵策略和剂量水平需要基于针对整个菌落的特定毒性特性和营养策略。