Developing sequential sampling plans for classifying Lasioderma serricorne (F.) (Coleoptera, Anobiidae) status in a cigarette factory
2006
Carvalho, M.O. | Carvalho, J.P de | Torres, L.M. | Mexia, A.
This paper presents sequential sampling plans for classifying the pest status of Lasioderma serricorne (F.) based on complete counts from insects caught in sex pheromone traps in a cigarette factory. The sampling plan used 26 pheromone traps. As the adult population follows the negative binomial distribution, a sequential sampling plan was developed using the sequential probability ratio test (SPRT). Iwao's confidence interval method was also employed to analyse results. The sampling plan was implemented to assist management decision-making based on the economic threshold of 5 insects/trap/week. The results show that, using SPRT or Iwao's methods, managers can make decisions using only seven and six traps, respectively, with a minimum risk of incorrect assessment.
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