Dissipation Dynamics of flubendiamideon Capsicum in Open Field and Poly House Conditions

Abstract

Studies were undertaken to establish dissipation dynamics of commonly used insecticide at recommended dose both in open field and poly house situations to assess the differences in rate of dissipation, and also to recommend Pre-Harvest Intervals based on MRLs established by CAC and FSSAI. Utilizing flubendiamide 20% WG @ 48 g a.i. ha-1sprayed at three times and capsicum samples collected at regular intervals were analysed for residues.. The dissipation pattern of insecticides varied in poly houses and open fields, where initial deposits were comparatively higher and dissipated slowly in poly houses, Spray of flubendiamide at recommended dose resulted in 2.40 mg kg-1 initial deposit at 2 hours after spray which dissipated to BDL by 10th day in poly house. However, as the Codex MRL is 2 mg kg-1, a PHI of 1 day is ideal for food safety. Whereas in open field, 2.13 mg kg-1initial deposit at 2 hours after spray which dissipated to BDL by 10th day in open field.