The increasing problem of bed bugs requires the development of new control strategies, and insect pathogenic fungi can contribute towards management. We used laboratory bioassays with Isaria fumosoroseus, Lecanicillium muscarium and Beauveria bassiana to evaluate their virulence to the bed bug. Only B. bassiana significantly affected bed bug survival and was dependent on dose and formulation. A 2% B. bassiana oil formulation induced horizontal transfer to elevate mortality in a 10-day arena bioassay. Temporal distribution of contagious individuals and increasing the dose from 2 to 4% did not increase mortality. Horizontal transfer mainly occurred between adults, and only partly between adults and nymphs. Bed bugs showed activity peaks during the night, and activity was increased by elevated levels of CO₂. Distribution between harbourages was not affected by CO₂ activation, level of infection or the bio-pesticide, and horizontal transfer was not dependent on the degree of aggregation. Movement in the arenas negatively affected horizontal transfer when the number of susceptible individuals was large. Level of infection also influenced behaviour as the bed bug movement increased with elevated disease burden. The use of fungi as a part of an integrated pest management strategy seems to be an interesting option that should be investigated further. B. bassiana kills bed bugs and can be carried to harbourages to target hidden individuals.

中文翻译：

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昆虫病原真菌和臭虫：行为，水平转移以及对IPM解决方案的潜在贡献。

臭虫日益严重的问题要求开发新的控制策略，而昆虫病原真菌可有助于控制。我们对伊萨里亚（Isaria fumosoroseus），鼠疫Lecanicillium muscarium和球孢白僵菌（Beauveria bassiana）进行了实验室生物测定，以评估它们对臭虫的毒力。仅球孢杆菌（B. bassiana）显着影响臭虫的存活，并取决于剂量和制剂。B.bassiana 2％油制剂在10天的竞技场生物测定中诱导水平转移以提高死亡率。传染性个体的时间分布以及将剂量从2％增加到4％并没有增加死亡率。水平转移主要发生在成虫之间，仅部分发生在成虫和若虫之间。臭虫在夜间显示出活动高峰，而活动因CO ₂含量升高而增加。港口之间的分布不受CO _2的影响活化，感染或生物农药的水平以及水平转移与聚集程度无关。当易感个体的数量很大时，竞技场中的运动会对水平转移产生负面影响。随着臭虫的移动随着疾病负担的增加而增加，感染程度也影响了行为。将真菌作为病虫害综合治理策略的一部分似乎是一个有趣的选择，应进一步研究。B. bassiana杀死臭虫，可被带到港口以针对隐藏的个体。