Influence of abiotic factors on the incidence of mango hopper (Hemiptera: Cicadellidae) in Chhattisgarh

Abstract

The mango hopper is one of the major devastating pest of mango at flowering stage. The present investigation on influence of abiotic factors on the incidence of mango hopper and the result indicated that the mango hoppers appeared during last week of October with 1.70 hoppers per twig/panicle. The hoppers population continued to build up and attained peak incidence (12.38/twig/panicle) during third week of February at flowering stage (7th standard meteorological weeks). Declining trend of hoppers population was recorded from last week of February, when tree enters in fruiting stage. The lowest hopper population (0.13/twig/panicle) was recorded during first week of April at fruit maturity stage (14th standard meteorological weeks). The correlation coefficient studies revealed that hopper population and weather parameters were found negative and non-significant correlation with temperature and rainfall whereas, positive and non-significant correlation was calculated with relative humidity.