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자료유형
학술저널
저자정보
Yoon, Eun-Young (Division of Environmental Science and Ecological Engineering, College of Life and Environmental Sciences, Korea University) Nam, Young-Woo (Division of Environmental Science and Ecological Engineering, College of Life and Environmental Sciences, Korea University) Ryoo, Mun-Il (Division of Environmental Science and Ecological Engineering, College of Life and Environmental Sciences, Korea University)
저널정보
한국응용곤충학회 Journal of Asia-Pacific Entomology Journal of asia-pacific entomology 제8권 제3호
발행연도
2005.1
수록면
273 - 278 (6page)

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The ability of Bracon hebetor Say, a larval parasitoid of certain stored product moths, to suppress a Plodia interpunctella($H{\dot{u}}bner$) population was studied in differing rice products. The larvae of P. interpunctella gathered on the topmost layer of the experiment cages filled with rice product (less than 3 cm in depth), and were rarely observed in deeper depths (deeper than 3 cm). Without P. interpunctella, B. heetor did not show a preference for any of the three types of milled rice products used. In rice flour, the searching behavior of B. hebetor for P. interpunctella was limited, apparently due to the thick webbing prouced by the moth larvae. B. hebetor suppressed P. interpunctella population successfully in cracked rice kernels, but failed to suppress the moth population in rice flour. In whole rice kernels, B. hebetor suppressed the moth population only when the volume of rice in the cage was large enough to support a high population density of P. interpunctella (2.4 kg/cage). Success and failure of B. hebetor to suppress the moth population in the three different rice products are discussed in relation to the larval webbing and intraspecific cometition of P. interpunctella larvae.

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