Document Detail

Confidence limits and sample size for determining nonhost status of fruits and vegetables to tephritid fruit flies as a quarantine measure.
MedLine Citation:
PMID:  17461044     Owner:  NLM     Status:  MEDLINE    
Quarantine measures including treatments are applied to exported fruit and vegetable commodities to control regulatory fruit fly pests and to reduce the likelihood of their introduction into new areas. Nonhost status can be an effective measure used to achieve quarantine security. As with quarantine treatments, nonhost status can stand alone as a measure if there is high efficacy and statistical confidence. The numbers of insects or fruit tested during investigation of nonhost status will determine the level of statistical confidence. If the level of confidence of nonhost status is not high, then additional measures may be required to achieve quarantine security as part of a systems approach. Certain countries require that either 99.99 or 99.9968% mortality, as a measure of efficacy, at the 95% confidence level, be achieved by a quarantine treatment to meet quarantine security. This article outlines how the level of confidence in nonhost status can be quantified so that its equivalency to traditional quarantine treatments may be demonstrated. Incorporating sample size and confidence levels into host status testing protocols along with efficacy will lead to greater consistency by regulatory decision-makers in interpreting results and, therefore, to more technically sound decisions on host status.
Peter A Follett; Michael K Hennessey
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of economic entomology     Volume:  100     ISSN:  0022-0493     ISO Abbreviation:  J. Econ. Entomol.     Publication Date:  2007 Apr 
Date Detail:
Created Date:  2007-04-27     Completed Date:  2007-06-21     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  2985127R     Medline TA:  J Econ Entomol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  251-7     Citation Subset:  IM    
U.S. Pacific Basin Agricultural Research Center, USDA-ARS, P.O. Box 4459, Hilo, HI 96720, USA.
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MeSH Terms
Confidence Intervals
Insect Control / methods,  standards*
Larva / physiology
Quarantine / standards*
Sample Size
Tephritidae / physiology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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