Suris Campo, M. 1999 Disposición espacial de Selenaspidus articulatus Morg. (Coccoidea: Diaspididae) en naranjo Valencia (Citrus sinensis L.). [Spatial distribution of Selenaspidus articulatus Morg. (Coccoidea: Diaspididae) in Valencia oranges (Citrus sinensis L.).]. Revista de Protección Vegetal 14(1): 17-22.

Notes: For three years, ten Valencia orange trees were sampled every 15 days, in the field in Cuba. A leaf pertaining to the inferior, medial and superior area of every cardinal point was taken from these trees. The density of larvae and adult females of Selenaspidus articulatus was evaluated on the leaves. Variance/mean relation, K parameter of DBN and Taylor's power law were applied. Results showed an aggregate distribution which, with random arrangements, alternates throughout the year in height levels as well as in cardinal points for the larva and adult female. The collected information allowed improvement to the existent sampling method by reducing its duration.