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논문 기본 정보

자료유형
학술저널
저자정보
Kijong Cho (Department of Agricultural Biology, College of Natural Resources, Korea University) Sang-Hoon Kang (Department of Plant and Environment, Cheju RDA) Jeang-Oon Lee (Department of Agricultural Entomology, National Institute of Agricultural Science and Technomogy, RDA)
저널정보
한국응용곤충학회 Journal of Asia-Pacific Entomology Journal of asia-pacific entomology 제1권 제2호
발행연도
1998.1
수록면
163 - 170 (8page)

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Dispersion patterns of phytophagous thrips(Thysnaoptera: Thripidae) were determined for greenhouse cucumber, Cucumis sativus L., in Cheje-do, Korea, during 1995 and 1996. Thrips populations were sampled using leaf sample, yellow sticky trap and visual estimate concurrently on each sampling date. Frankliniella occidentalis (Pergande) was the most dominant thrips species, accounting 92% of all specimens collected from leaf samples and yellow sticky traps. Dispersion indices generated by Taylor's power law and Iwao's patchiness regression were compared. Generally, Taylor's power law provided better description of mean-variance relationship than did Iwao's patchiness regression with exception of the data from the sticky trap. Slopes and intercepts of Taylor's power law from leaf sample and visual estimate did not differ among thrips species and surveyed greenhouses. A fixed-precision-level of sequential sampling plan was developed using Taylor's power law parameters generated from total number of thrips in leaf sample and visual estimate. This sampling plan for visual estimate was tested with sequential resampling simulation using 4 independent data sets. Resampling simulation analysis demonstrated that actual D values were always less than desired D values of 0.20, 0.25 and 0.30.

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