Allactoneura akasakana Sasakawa, 2005 (Diptera, Mycetophilidae), occurred in cultivation facilities of shiitake mushroom
2019
Sueyoshi, M. (Forestry and Forest Products Research Institute (FFPRI) (Japan). Shikoku Research Center) | Mukai, H. | Kitajima, H. | Huang, J.
We report here a fungus gnat, Allactoneura akasakana Sasakawa, 2005, as found in indoor facilities of the shiitake mushroom, Lentinula edodes, from Japan and China. Adults and larvae were found in indoor facilities between September and November in Japan, without any infestations to fruit bodies of the mushrooms. Seven adults were trapped on seven of 1320 adhesive sheets installed in five facilities of Ibaraki and Gunma Prefectures, Honshu, Japan, from June 2017 until March 2019. Larvae collected on sawdust mycerial blocks in indoor facilities emerged as adults within two weeks after pupation at room temperature (around 20 degree of centigrade). Allactoneura akasakana was recorded from Tsushima, Okinawa Island, and China for the first time, based on adults collected in indoor and outdoor environments. We suggested that this fungus gnat is a potential pest of the shiitake mushroom, occurring with several generations during summer and autumn seasons in Japan and China.
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