Abstract

CABRERA C, ALCIDES; SURIS C, MORAIMA; GUERRA B, WALKIRIA  and  NICO E, DORA EMMA. Fixed precision level sequential sampling for Thripspalmi (Thysanoptera: Thripidae) on potato. Rev. Colomb. Entomol. [online]. 2005, vol.31, n.1, pp.37-42. ISSN 0120-0488.

Starting from the knowledge of the spatial pattern of Thrips palmi Karny populations collected in potato fields (Solanum Solanum L.) under production conditions and indicators for their description. estimated by means of 1ylor’s Power Law, a fixed-precision-level sequential sampling plan was designed. The results were validated with 46 sets of fleid data and the efficiency was demonstrated from the same group by reducing the sample size 34% as indicated by the Ministry of Agriculture in the Phytosanitary Defense Program for potato. It is proposed that this sampling procedure be incorporated into the existing Integrated Management Program for the monitoring of this important agricultural pest.

Keywords : Spatial pattern; Monitoring; Populations.

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