Modelado espacial de la dispersión de Megalurothrips usitatus (Bagnall) (Thysanoptera: Thripidae) en Phaseolus vulgaris.

With the objective of providing information for monitoring the bean flower thrip (Megalurothrips usitatus (Bagnall), a study of their spatial pattern was carried out using geo-statistical techniques. Nine samples were taken weekly from a 0,75 ha plot in San José de las Lajas, Mayabeque province, Cuba, during the October-December 2020 campaign. The population of nymphs and adults of thrips was counted in 25 sampling points placed equidistant 0,6 meters on each diagonal. To determine the spatial distribution, semivariograms were performed by sampling and extrapolating by kriging. Predictive maps were made to identify foci with the largest population and the best time to take control measures. The structural analysis showed that the spherical model offered the best fit and the spatial dependence of the points was high in almost all samples. The insect showed an aggregated distribution pattern and the population foci, identified as key points to carry out the application of natural control or other management measures, were concentrated in the center of the field. [ABSTRACT FROM AUTHOR]