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Spatial pattern and distribution inside the plant Pseudacysta perseae Heidemann (Hemiptera: Tingidae) in avocado trees associated to coffee plantation


, : Spatial pattern and distribution inside the plant Pseudacysta perseae Heidemann (Hemiptera: Tingidae) in avocado trees associated to coffee plantation. Revista de Proteccion Vegetal 20(3): 173-178

A research was carried out to determine the spatial pattern and distribution of P. perseae (Hemiptera: Tingidae) in avocado trees associated to coffee plantations. The dispersion indexes such as variance-mean ratio, index of mean crowding, the Lloyd's index, the Green's index and the exponent k of the negative binomial distribution were calculated to describe the spatial pattern.

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