Field Evaluation of Bio and Synthetic Pesticides Against Jassid (Amrasca Devastans Dist.) on Okra

Abstract

Bio and synthetic pesticides were evaluated against jassid (Amrasca devastans Dist.) on okra during 2014 and 2015 at Murredke, Punjab.The treatments included neem oil, extracts of neem, tobacco, akk, tooh/tumma, datura, garlic, eucalyptus and ginger; while synthetic pesticides include Tracer 45SC, Runner 240 SC, Radiant 120 SC, Coragen 20 SC and Belt 480 SC. All the bio and synthetic pesticides were effective and showed highest efficacy 7 days after spray (DAS) as jassid population started increasing 14 DAS during both the years. During 2014, among bio and synthetic pesticides, tobacco extract and Runner produced maximum jassid mortality of 64.33and 87.30% after 1st spray, while 63.89 and 90.86% mortality 7 DAS, respectively. During 2015, neem extract among biopesticides and Runner 240 SC among synthetic pesticides resulted in highest insect mortality of 65.37 and 92.84% after 7 days of 1st spray, while 67.33 and 88.67% mortality after 7 days of 2nd spray, respectively.