Field and laboratory studies on residues and dissipation of lambda-cyhalothrin in pomegranate fruits were coducted during 2010 at the Pesticide Residue Analysis Laboratory, Department of Entomology, Mahatma Phule Krishi Vidyapeeth, Rahuri, Ahmednagar M.S. The studies revealed that residues of imidacloprid persisted up to 3 days and 5 days in arils, 5 days and 7 days in whole fruits and 7 days and 10 days in peel of pomegranate fruits at recommended and higher doses, respectively.How to cite this paper : Kadam, D.R., Deore, B.V. and Umate, S.M. (2015). Residues and dissipation of lambda-cyhalothrin in pomegranate fruits. Asian J. Bio. Sci., 10 (1): 27-32.
Field and laboratory studies on residues and dissipation of fipronil and metabolites in pomegranate fruits were conducted during 2010 at the Pesticide Residue Analysis Laboratory, Department of Entomology, Mahatma Phule Krishi Vidyapeeth, Rahuri, Ahmednagar (M.S.) India. The studies revealed that residues of fipronil persisted up to 3 and 5 days in arils, 7 and 10 days in whole fruits and 10 and 14 days in peel of pomegranate fruits at recommended and higher doses, respectively. The metabolites showed interesting mode of dissipation.
The dissipation behavior of deltamethrin 10 EC (Decis®) in capsicum (Capsicum annuum var. frutescens) grown in polyhouse and open field was investigated. Two sprays of deltamethrin 10 EC @ 15 and 30g a.i./ha (150 ml/ha -recommended and 300 ml/ha- double the recommended dose), respectively were applied at 10 days intervals, initiating at button sized fruit stage. Fruit samples were collected at 0, 1, 3, 5, 7, 10, 15, 20, 25 days after second spray and the soil samples were collected at final harvest for residue analyses. Modified QuEChERS multi-residue analysis showed initial residues of 0.976 and 1.161 mg/kg recorded at 15 and 30 g a.i./ha doses, respectively in polyhouse. The residues persisted upto 7th and 10th day, reaching below quantification limit (BQL) by 10th and 15th day, respectively at both the doses. In open field, the initial deposits recorded were 0.607 and 1.924 mg/kg reaching BQL on 5th and 7th day, respectively @ 15 and 30 g.a.i./ha. The comparative results showed that half life (syn. Dissipation time 50- DT50) for deltamethrin in capsicum fruits varied from 2.05–2.45 days in polyhouse. The corresponding values in open field were 1.51–1.86 days suggesting that dissipation of deltamethrin residues took longer time in controlled conditions than open field. The soil samples analysed at harvest contained no residues. The insecticide degradation followed the first order kinetics. Since, the insecticide is not recommended under capsicum in India; the data may help to fix maximum residue limit (MRL) and pre harvest interval (PHI).
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.