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A dynamic binomial sequential sampling plant for Plutella xylostella (Lepidoptera: Plutellidae) on broccoli and cauliflower in Australia

Hamilton, A.J., Schellhorn, N.A., Endersby, N.M., Ridland, P.M., Ward, S.A.
Journal of economic entomology 2004 v.97 no.1 pp. 127-135
Plutella xylostella, insect pests, sampling, pest monitoring, Brassica oleracea var. botrytis, broccoli, cauliflower, developmental stages, parasitism, food marketing, economic threshold, decision making, computer software, Victoria (Australia)
Binomial sequential sampling plans have been used widely for monitoring invertebrate pest populations. Such plans are typically based upon a single action threshold (AT), which represents the level of infestation that the grower is prepared to accept before using a control measure. For many cropping systems this acceptable infestation level is likely to vary, being dependent on factors such as the growth stage of the crop and the value or demands of the destination market (e.g., local or high-quality export). We developed and validated a computer-assisted plan that uses a dynamic AT. The plan has been developed for monitoring diamondback moth, Plutella xylostella (L.) on broccoli (Brassica oleracea variety botrytis L.) and cauliflower (Brassica oleracea variety botrytis L.), but the concepts and methodologies could be readily applied to other systems.