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Range expansion of the tracheal mite Acarapis woodi (Acari: Tarsonemidae) among Japanese honey bee, Apis cerana japonica, in Japan.
Experimental and Applied Acarology ( IF 2.2 ) Pub Date : 2020-04-06 , DOI: 10.1007/s10493-020-00482-6
Taro Maeda 1 , Yoshiko Sakamoto 2
Affiliation  

Acarapis woodi, a parasitic mite of honey bees, was first detected in Japan in 2010. Infestation was mostly observed in the Japanese honey bee (Apis cerana japonica) and was rare in the European honey bee (Apis mellifera). By 2014, the mites had spread throughout central and eastern Japan. In the current study, we investigated the subsequent expansion of the mite to western Japan. Our research revealed that the mites were distributed across most of Japan by 2018, except for Wakayama and Kochi prefectures. Many small remote islands more than 20 km away from mainland Japan are still free of A. woodi, but bees on some of these islands were infested. About 40% of colonies of the Japanese honey bee in Japan were infested by the mites, and average mite prevalence of the infested colonies was about 50% during the 6-year study. There was no trend of decline in the infested colony proportion or in the mite prevalence. In addition, the observation of Japanese honey bee colonies by hobby beekeepers for two signs of mite infestation, K-wing and crawling bees, was an effective means for estimating infestation by tracheal mites.

中文翻译:

在日本的蜜蜂Apis cerana japonica中,气管螨Acarapis woodi(Acari:Tarsonemidae)的范围扩大。

Acarapis woodi是蜜蜂的寄生螨,于2010年在日本首次发现。在日本的蜜蜂(Apis cerana japonica)中主要观察到侵染,在欧洲的蜜蜂(Apis mellifera)中很少见。到2014年,螨虫已遍布日本中部和东部。在当前的研究中,我们调查了螨虫随后向日本西部扩展的情况。我们的研究表明,除和歌山县和高知县外,到2018年,螨虫已分布在日本大部分地区。距日本大陆20多公里的许多偏远小岛上仍然没有A. woodi,但是其中一些岛屿上的蜜蜂出没了。在日本的日本蜜蜂中,约有40%的螨虫感染了螨虫,在6年的研究中,这些螨虫的平均螨虫患病率约为50%。受侵染的菌落比例或螨虫流行率没有下降的趋势。此外,嗜好养蜂人观察日本蜂群是否有螨虫侵扰的两种迹象,即K翅和爬行蜂,是估算气管螨侵扰的有效手段。
更新日期:2020-04-06
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