Parasitic Hymenoptera visiting the flowers of carrot planted in the truck crop field

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  • Hirose Yoshimi
    Entomological Laboratory, Faculty of Agriculture, Kyushu University

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  • 蔬菜栽培地帯のニンジンの花畑に集まる寄生蜂類
  • ソサイ サイバイ チタイ ノ ニンジン ノ ハナバタケ ニ アツマル キセイバチルイ

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Preliminary faunal surveys on the parasitic Hymenoptera visiting the flowers of carrot planted for seed production in the truck crop field were made in the suburbs of Fukuoka. Of 62 species in 13 families collected, ichneumonids and braconids were the most abundant groups, and chalcidids and pteromalids were also numerous. Most of these parasitic Hymenoptera were important natural enemies of truck crop pests, e.g., Apanteles glomeratus parasitic on the larva of the common white, Pieris rapae crucivora and Bracon onukil usually parasitic on the larva of the rice stem borer, Chilo suppressalis. It is suggested that the patches of carrot flowers scattered in the truck crop field play an important role as the source of food for the adults of some hymenopterous parasites of various crop pests.

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