Description of the soybean pod gall midge, Asphondylia yushimai sp. n. (Diptera: Cecidomyiidae), a major pest of soybean and findings of host alternation

J. Yukawa, N. Uechi, M. Horikiri, Midori Tuda

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Abstract

The soybean pod gall midge is an important pest of soybean in Japan and is known to occur also in Indonesia and China. This gall midge is described from Japan as Asphondylia yushimai sp. n. and is clearly distinguished from its congeners by the arrangement of the lower frontal horns of the pupa and the sequence of the mtDNA COI region. It is concluded that Prunus zippeliana Miquel is a winter host of the soybean pod gall midge since haplotypes of the soybean pod gall midge coincide with those of the Prunus fruit gall midge that produces fruit galls on P. zippeliana. In addition, phenological and distributional information on the two gall midges and on their host plants supports the identification of the winter host. In Japan, the soybean pod gall midge overwinters as a first instar in the fruit galls on P. zippeliana and emerges as an adult from the galls in May. In summer and autumn, the soybean pod gall midge has two or more generations in the pods of soybean, Glycine max (L.) Merrill or wild fabaceous and caesalpiniaceous plants. Thus host alternation by A. yushimai is confirmed. This is the second finding of host alternation by a species of Asphondylia, the first instance being that of Asphondylia gennadii (Marchal) in Cyprus.

Original languageEnglish
Pages (from-to)73-86
Number of pages14
JournalBulletin of Entomological Research
Volume93
Issue number1
DOIs
Publication statusPublished - Feb 1 2003

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All Science Journal Classification (ASJC) codes

  • Agronomy and Crop Science
  • Insect Science

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