Sweet Potato Hornworm, Agrius convolvuli, as a New Experimental Insect: Growth and Development under Rearing Using Artificial Diets.

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  • SHIMODA Masami
    National Institute of Sericultural and Entomological Scicnce
  • KAMIWADA Hidemi
    Ohsumi Branch, Kagoshima Agricultural Experiment Station Kagoshima Agricultural Experiment Station
  • KIGUCHI Kenji
    National Institute of Sericultural and Entomological Scicnce Faculty of Textile Science and Technology, Shinshu University

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Other Title
  • エビガラスズメの実験昆虫化　人工飼料育における発育特性
  • エビガラスズメ ノ ジッケン コンチュウカ--ジンコウ シリョウイク ニ オケル ハツイク トクセイ
  • Growth and Development under Rearing Using Artificial Diets
  • 人工飼料育における発育特性

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Abstract

Our objective is to improve the knowledge of the biology of the sweet potato hornworm, Agrius convolvuli, which might be useful as an experimental insect. A. convolvuli is closely related to the tobacco hornworm, Manduca sexta, now used widely as an experimental insect. We investigated its life cycle and growth under laboratory rearing with artificial diets. A. convolvuli ecdysed to the 5th instar 12-14 days after hatching, pupated at 21-26 days and emerged at 36-41 days at 27°C and 16L-8D photoperiod. The 5th instar larvae grew up to 8cm in body length, and 11-12g in body weight. Ecdysis was time specific and varied in successive developmental stages, suggesting stage-specific gating rhythms. We discussed the similarities and differences between A. convolvuli and M. sexta and concluded that A. convolvuli has characteristics and advantages comparable to M. sexta as an experimental insect.

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