北海道における針葉樹の球果・新梢を食害するツマクロテンヒメハマキについて

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  • 駒井 古実
    大阪府立大学農学部 大阪芸術大学環境計画学科

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  • Petrova monopunctata Oku (Lepidoptera:Tortricidae) infesting cones and shoots of coniferous trees in Hokkaido.
  • ホッカイドウ ニ オケル シンヨウジュ ノ キュウ カ シンショウ オ ショク

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Petrova monopunctata OKU, hitherto little known as a pest, was found to be a comparatively destructive insect which damages the cones and shoots of some species of coniferous trees in Hokkaido. The adult, pupa, and larva were described. Petrova pini KUZNETZOV was newly synonymized with P. monopunctata OKU. The biology was as follows: one generation per year; adult flying from early May to mid-June; larvae tunneling into cones and shoots of Abies and Picea, and cones of Pinus and Larix (Pinaceae); pupation in cocoons in cones and shoots; hibernation in pupae in cocoons. In addition to P. monopunctata, eleven Microlepidoptera attacking cones and shoots of coniferous trees have been recognized in Hokkaido. The characters enabling to distinguish the larvae (excluding Rhyacionia sp. and Cydia illutana dahuricolana KUZNETZOV) were summarized.

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