Abstract
Spatial distribution of Cydia ptychora infested flower and pods of pigeonpea was studied in the experimental field of Department of Life Sciences, Manipur University. Various indices of dispersion, such as variance, variance to mean ratio, Lloyd’s index of patchiness, mean crowding, Iwao’s regression and Taylor’s power law were evaluated to study the distribution pattern. Distribution pattern of C. ptychora followed contagious behaviour of distribution on pigeonpea crops during both the years. Keywords: Spatial distribution, Cydia ptychora, contagious, pigeonpea.
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