Modelización y mapeo de la distribución espacial de Bactericera cockerelli Sulc (Hemiptera: Triozidae) en papa en el estado de México.

The productions of potato (Solanum tuberosum L.) have gotten main economic looses due to the presence of Bactericera cockerelli Sulc., which is related to the purple top and “zebra chip". Control alternatives have been inefficient because none of them has considered the spatial behavior of the insect inside the plot. Such behavior would allow us to focus the control alternatives in specific points. The purpose on this work was to model the spatial distribution of the eggs, nymphs and adults stages of B. cockerelli which were obtained in potato field by transects and quadrants sampling, using geostatistics and statistics tools that allow us to visualize their spatial distribution on the field through the creation of maps by kriging. The obtained results indicated that the dispersion index, the green index, Poisson and negative binomial of statistics showed inconsistency in determining the aggregation of the insect stadia detecting strong deficiencies and limitations, whereas the geostatistics techniques allowed to determine that the spatial distribution of eggs, nymphs and adult stages of B. cockerelli was aggregated in each of the three dates as in the sampling by transect as in the sampling by quadrants. Also, it was possible to model B.cockerelli spatial distribution in both methods. The crossed validation of the obtained semivariograms corroborates the aggregated distribution of eggs, nymphs and adults of B. cockerelli. The generated maps in the sampling by quadrants as by transects allowed to observe the aggregated structure of the insect population, which did not invade the potato plot in 100%, letting to identify the infested areas and the free areas of infestation. [ABSTRACT FROM AUTHOR]