Pests of the Endangered Herb Platycodon grandiflorus in Central Japan

Authors

  • Etsuro Takagi University of Tsukuba

Keywords:

Adenophora triphylla var. japonica, Hemiptera, Miridae, Spider mite, Strongylocoris leucocephalus, Tetranychus kanzawai

Abstract

Platycodon grandiflorus (Jacq.) A.DC. is a perennial herb in the Campanulaceae, whose wild populations in Japan are declining dramatically. As Strongylocoris leucocephalus(L.) (Hemiptera: Miridae) infests Campanula spp. in western Eurasia, and Adenophora triphylla (Thunb.) A.DC. var. japonica (Regel) H.Hara is a common pest in Japan, they may also be potential pests of P. grandiflorus. Field surveys, however, indicated that S. leucocephalus never infested P. grandiflorus, but that Tetranychus kanzawai Kishida (Acari: Tetranychidae) did. In addition, S. leucocephalus never fed on P. grandiflorus in the laboratory. Our results suggest that T. kanzawai is an important pest of P. grandiflorus, but that S. leucocephalus is not a potential pest of this endangered plant.

Author Biography

Etsuro Takagi, University of Tsukuba

Sugadaira Montane Research Center,

Assistant Professor 

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Published

28.03.2016

How to Cite

Takagi, E. (2016). Pests of the Endangered Herb Platycodon grandiflorus in Central Japan. Journal of the Entomological Research Society, 18(1), 01–05. Retrieved from https://www.entomol.org/journal/index.php/JERS/article/view/811

Issue

Section

Journal of the Entomological Research Society