Vol. 11, Special Issue 3 (2022)

Author(s):
Sapkal SD, Mehendale SK, Shinde BD, Sanap PB and Chavan SS

Abstract:
The studies entitled ‘Seasonal incidence of major sucking pests on okra’ were conducted on the research farm of Vegetable Improvement Scheme, Central Experiment Station, Wakawali, under DBSKKV, Dapoli during Summer 2019 and Summer 2020. The major sucking pests recorded in the experimental field were jassid (Amrasca bigutulla bigutulla Ishida), aphid (Aphis gossypii Glover) and whitefly (Bemisia tabaci Gennadius). The population of jassid and aphid were started during 10^th SMW while, whitefly during 11^th SMW and reached its peak level in 16^th (20.75), 15^th (12.25) and 14^th (5.80) SMW respectively. Correlation of pest incidence and weather parameters revealed that the population of jassid, aphid and whitefly showed positively highly significant correlation with maximum temperature (r=0.713**), (r=0.813**), (r=0.783**) while, positively significant correlation with minimum temperature (r=0.671*), (r=0.623*) and (r=0.612*) respectively. The population of jassid, aphid and whitefly had a positively non-significant correlation with morning relative humidity, wind speed and evaporation. While, negatively non-significant correlation was recorded between aphid and bright sunshine as well as whitefly and evening relative humidity and bright sunshine.