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Yoshitsugu Nasu,Yositaka Sakamaki,Yasuhiro Tomioka 국립중앙과학관 2016 Journal of Asia-Pacific Biodiversity Vol.9 No.2
The immature stages of Oecia oecophila (Staudinger, 1876) (Schistonoeidae) are described and illustrated for the first time. The biological notes are provided, and the phylogenetic relationships of the family discussed.
Satoshi Kakoki,Takeshi Kamimuro,Katsuo Tsuda,Yositaka Sakamaki 한국응용곤충학회 2019 Journal of Asia-Pacific Entomology Vol.22 No.3
We studied the effects of partial spraying, targeting tea [Camellia sinensis (L.) O. Kuntze] plants' plucking surfaces, on the annual number of major pests and damage to new shoots. The prevention of feeding damage to shoots caused by Empoasca onukii Matsuda (Hemiptera: Cicadellidae) was more stable when spraying at high volumes. However, the annual number of E. onukii with conventional spraying (200 L/1000 m 2 ) was similar to the control (No pesticide). On the other hand, the prevention effect on shoots and the annual number of Scirtothrips dorsalis Hood (Thysanoptera: Thripidae) in partial spraying (40 L/1000 m 2 ) was similar to conventional spraying. Moreover, although high volumes of spraying (1000 L/1000 m 2 ) are usually needed to control Pseudaulacaspis pentagona (Targioni-Tozetti) (Hemiptera: Diaspididae), the male adult population of P. pentagona in the control and partially sprayed field tended to be lower than that in the conventional spraying. When using pesticides harmful to P. pentagona's natural enemies, partial spraying seems beneficial. Enough pesticide spraying to widely cover the leaf layer was thought necessary to protect the tea plants' new shoots. However, the spraying method targeting only the tea plants' plucking surfaces protects the new shoots with similar efficacy. Besides, partial spraying protects pests' natural enemies, allowing additional pest population control.
SOHN, JAE-CHEON,PONOMARENKO, MARGARITA G.,SAKAMAKI, YOSITAKA Magnolia Press 2019 Zootaxa Vol.4638 No.1
<P>The systematic status of Gelechia acanthopis Meyrick, 1932 is reviewed. The general and functional morphology of the male genitalia merits a new genus in Pexicopiini, Sitotrogoides gen. nov., for G. acanthopis. The musculoskeletal apparatus of the male genitalia in Sitotrogoides is described for the first time and compared with allied genera. The taxonomic position of the genus Sitotrogoides is determined within the tribe Pexicopiini. The lack of the muscle m3 is suggested as a characteristic associating Sitotrogoides with Sitotroga and differing from all other genera in Pexicopiini. The type species of Sitotrogoides, Gelechia acanthopis Meyrick is redescribed. Our new records of Sitotrogoides acanthopis from Korea suggest its extended distribution out of Japan. </P>