Relationship between preentry sample size for quarantine security and variability of estimates of fruit fly (Diptera: Tephritidae) disinfection treatment efficacy

Harte, D.S.; Baker, R.T.; Cowley, J.M.

Relationship between preentry sample size for quarantine security and variability of estimates of fruit fly (Diptera: Tephritidae) disinfection treatment efficacy

1992

Harte, D.S. | Baker, R.T. | Cowley, J.M.

We developed a probability model to quantify the quarantine risk from importing fruit fly hosts. Bayesian theory is used to show how sample size at point of entry is related to the number of test insects used to determine efficacy of the postharvest disinfestation treatment. The model assumes that other variables such as lot size, average number of insects in an infested fruit, and maximum pest limit (or tolerance) are fixed and known. Examples are given using data for the fruit fly species Bactrocera melanotus (Coquillet) and Bactrocera xanthodes (Broun).

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