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자료유형
학술저널
저자정보
Park, Jung-Joon (Department of Agricultural Biology, College of National Resources, korea Univesrity) Park, Heungsun (Department of Statistics Hankuk University of Foreign Studies, Yongin Korea) Kim, Yong-Heon (Department of Agricultural Entomology, National Institute of Agricultural Science and Technology RDA Suwon Korea) Kijong Cho (Department of Agricultural Biology, College of National Resources, korea Univesrity)
저널정보
한국응용곤충학회 Journal of Asia-Pacific Entomology Journal of asia-pacific entomology 제3권 제2호
발행연도
2000.1
수록면
121 - 126 (6page)

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A sequential sampling procedure for classifying the ratio of prey/predators developed by Nyrop (1988) was examined to implement for a biological control in the greenhouse roses. The procedure was combined with a sequential density classification procedure for use in monitoring a phytophagous mite, Tetranychus urticae Koch, and a phytoseiid predator, Phytoseiuluss persimilis Athias-Henriot. This procedure was required four Parameters: Means and variances for f urticae and P persimilis, correlation coefficient between densities of prey and predates and critical ratio of prey and predator. The parameter values used in this study were 0.725 for the correlation coefficient and 10 for the critical ratio. The variances for each species were estimated using a Taylor\`s power law model. The procedure is proven to be successfully applicable to T urticae and f persimilis system in greenhouse roses at two action threshold levels of f and 10 f urticae per three-leaflet leave. The limitations and implementation of this procedure is also discussed.

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