精米施設等におけるトウモロコシトガリホソガの発生とその消長

DOI 日本農学文献記事索引 Web Site 被引用文献1件 参考文献13件

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  • Seasonal Prevalence of Pink Scavenger Caterpillar, Anatrachyntis rileyi (Walsingham) (Lepidoptera: Cosmopterigidae) in Rice and Feed Mills.
  • セイマイ シセツ トウ ニ オケル トウモロコシトガリホソガ ノ ハッセイ ト ソノ ショウチョウ

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Occurrence of pink scavenger caterpillar, Anatrachyntis rileyi (Walsingham), which was not known to be established in Japan, was investigated in eight rice mill facilities, two feed factories and one rice processing facility for Awamori brewing in Ibaraki, Kagoshima and Okinawa, Japan. Seasonal occurrence of the moth was investigated with two kinds of sticky trap, a ribbon trap suspended from the ceiling and a floor mounted trap, at ten different sites in a large scale rice mill, in Tsuchiura, Ibaraki from June 1996 to June 1997. Moths were caught at all sites, and were captured every week except during the winter. The moths emerged from old rice bran in the rice mills and the feed factories investigated in Ibaraki and Kagoshima and an adult was also captured in Okinawa, indicating that A. rileyi has already widely colonized Japan. On the basis of the total effective temperature for A. rileyi, this species is estimated to have six generations per year in Tsuchiura. The number of adults captured by the ribbon traps was better correlated to the temperature in the mill than that of the floor mounted traps. However, seasonal changes in the number of adults captured by the floor mounted traps corresponded better to the times of adult emergence in the year estimated by the total effective temperature(degree-day).

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