Mycoflora of stored rice in relation to the biological control of Sitophilus oryzae by Anisopteromalus calandrae

Youngwoo Nam, Eun Young Yoon, Ki Deok Kim, Mun Il Ryoo

Research output: Contribution to journalArticle

Abstract

In this study, we determined the effect of controlling rice weevils on the mycoflora of stored brown rice by using Anisopteromalus calandrae (Howard), a parasite of the rice weevil. The mycoflora in brown rice with the parasitoid was similar to that without the parasitoid; however, the dominant mold species differed. Without the parasitoid, Aspergillus candidus Link and Penicillium islandicum Sopp were the dominant species, whereas Aspergillus penicilloides Speg. and P. islandicum were dominant when the parasitoid was present. The difference appeared to be due mainly to the difference in the grain moisture content with and without the parasitoid. A. candidus was the dominant species in the communities without the parasitoid and was not observed when the weevils were suppressed. P. islandicum dominated or co-dominated regardless of the presence of the parasitoid which suggested that P. islandicum is tolerant to low grain moisture content or is positively affected by the presence of the rice weevil.

Original languageEnglish
Pages (from-to)399-403
Number of pages5
JournalJournal of Asia-Pacific Entomology
Volume14
Issue number4
DOIs
Publication statusPublished - 2011 Dec 1

Keywords

  • Aspergillus candidus
  • Aspergillus penicilloides
  • Biological control
  • Dominance index
  • Penicillium islandicum
  • Sitophilus oryzae

ASJC Scopus subject areas

  • Insect Science

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