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http://dx.doi.org/10.5656/KSAE.2009.48.1.045

Developing Sequential Sampling Plans for Evaluating Maize Weevil and Indian Meal Moth Density in Rice Warehouse  

Nam, Young-Woo (Division of Environmental Science and Ecological Engineering, Korea University)
Chun, Yong-Shik (Division of Environmental Science and Ecological Engineering, Korea University)
Ryoo, Mun-Il (Division of Environmental Science and Ecological Engineering, Korea University)
Publication Information
Korean journal of applied entomology / v.48, no.1, 2009 , pp. 45-51 More about this Journal
Abstract
This paper presents sequential sampling plans for evaluating the pest density based on complete counts from probe in a rice storage warehouse. Both maize weevil and Indian meal moth population showed negative binomial dispersion patterns in brown rice storage. For cost-effective monitoring and action decision making system, sequential sampling plans by using the sequential probability ratio test (SPRT) were developed for the maize weevil and Indian meal moth in warehouses with 0.8 M/T storage bags. The action threshold for the two insect pests was estimated to 5 insects per kg, which was projected by a matrix model. The results show that, using SPRT methods, managers can make decisions using only 20 probe with a minimum risk of incorrect assessment.
Keywords
Maize weevil; Indian meal moth; Sequential sampling plan; Pest management; SPRT;
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