| Autor: |
William D. Hutchison, R. L. Meagher, David W. Hagstrum, Bh. Subramanyam, Eric C. Burkness, Steven E. Naranjo |
| Rok vydání: |
1997 |
| Předmět: |
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| Zdroj: |
Journal of Stored Products Research. 33:321-329 |
| ISSN: |
0022-474X |
| Popis: |
The development and evaluation of appropriate sampling plans are needed for cost-effective management of stored-product insects. Sequential sampling plans, which are based on a variable sample size, are generally more cost effective than plans based on a fixed sample size. For adults of the rusty grain beetle, Crypfofestes ferrugineus (Stephens), we developed sequential sampling plans based on complete counts and the presence/absence of insects in 0.5 kg grain samples removed with a trier from the top 1 m of wheat stored in farm bins. Insect count data were used to develop a sampling plan for estimating the density of C. ferrugineus with a fixed level of precision. The presence/absence data were used to develop a sampling plan for classifying the C. ferrugineus infestation level relative to an action threshold. The performance of these sampling plans was evaluated (validated) using independent data sets and an IBM-PC software program specifically designed to test the plans. This is the first paper illustrating the development and evaluation of sequential sampling plans for a stored-product insect. 0 1997 Elsevier Science Ltd. All rights reserved. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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