Abstract Psocids inhabit stored foods and cereals and cause serious problems with regard to food hygiene. They are a major target for pest control around the world, including Japan. Liposcelis bostrychophila Badonnel (Psocoptera: Liposcelidae) is a representative species of household psocid that prefers to feed on fungi while also spreading fungi in the site it inhabits; it is therefore recognized as an indicator of fungal generation. The present study investigated the characteristics of fungi that influence the feeding behavior of this fungivorous insect using four fungus species (Aspergillus tubingensis, Aspergillus flavus, Penicillium chrysogenum, Cladosporium cladosporioides) that are representative fungi found in Japanese food factories and food storage facilities. The results of preference and feeding tests performed using an arena device (diameter: 9 cm) and a handmade olfactometer revealed that P. chrysogenum was the most attractive fungus for feeding. Based on the comparison of multiple characteristics of P. chrysogenum and the three other fungus species, the factors that were considered to evoke the feeding behavior of L. bostrychophila were a velvety appearance with hyphae that were shorter than the height of the insect as well as specific odors. The present study clarified the common characteristics of the fungi preferred by L. bostrychophila, which may be used to predict pest occurrence and develop agents for trapping and monitoring, thus leading to effective integrated pest management.

中文翻译：

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决定 psocid，Liposcelis bostrychophila badonnel（Psooptera：Liposcelidae）的真菌取食偏好的多方面真菌特征

摘要 Psocids 栖息在储存的食物和谷物中，并导致严重的食品卫生问题。它们是包括日本在内的世界各地害虫防治的主要目标。Liposcelis bostrychophila Badonnel (Psooptera: Liposcelidae) 是家庭 psocid 的代表性物种，喜欢以真菌为食，同时也在其栖息地传播真菌；因此，它被认为是真菌产生的指标。本研究使用四种真菌（塔宾曲霉、黄曲霉、产黄青霉、枝孢枝孢）研究了影响这种食真菌昆虫摄食行为的真菌特征，这些真菌是日本食品工厂和食品储存设施中发现的代表性真菌。使用竞技场装置（直径：9 厘米）和手工制作的嗅觉计进行的偏好和喂养测试结果表明，P. chrysogenum 是最有吸引力的喂养真菌。基于 P. chrysogenum 与其他三种真菌的多个特征的比较，被认为引起 L. bostrychophila 取食行为的因素是绒毛状的外观，菌丝短于昆虫的高度，以及特定的气味。本研究阐明了 L. bostrychophila 首选真菌的共同特征，可用于预测害虫发生并开发诱集和监测剂，从而实现有效的综合害虫管理。基于 P. chrysogenum 与其他三种真菌的多个特征的比较，被认为引起 L. bostrychophila 取食行为的因素是绒毛状的外观，菌丝短于昆虫的高度，以及特定的气味。本研究阐明了 L. bostrychophila 首选真菌的共同特征，可用于预测害虫发生并开发诱集和监测剂，从而实现有效的综合害虫管理。基于 P. chrysogenum 与其他三种真菌的多个特征的比较，被认为引起 L. bostrychophila 取食行为的因素是绒毛状的外观，菌丝短于昆虫的高度，以及特定的气味。本研究阐明了 L. bostrychophila 首选真菌的共同特征，可用于预测害虫发生并开发诱集和监测剂，从而实现有效的综合害虫管理。