Population dynamics of major Sucking pests of Cluster bean [Cyamopsis tetragonoloba (l.) taub.] and their correlation with abiotic factors

The results revealed that the population of jassid and whitefly appeared on cluster bean in the first week of September and increased up to the last week of September and declined gradually till the crop was matured in last week of October. To know the effect of abiotic factors on the incidence of jassid and whitefly on cluster bean, the correlation coefficient was worked out between mean jassid and whitefly population and weather parameters. The maximum and minimum temperatures showed significantly positive correlation whereas, the relative humidity revealed negative significant correlation with jassid and whitefly population, respectively. The rainfall showed significantly positive correlation with jassid population only.