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Dissipation Pattern of Triazophos and Chlorpyriphos in Curry Leaf

DOI: 10.4236/oalib.1103134, PP. 1-8

Subject Areas: Entomology, Agricultural Science

Keywords: Dissipation Pattern, Triazophos, Chlorpyriphos, Curry Leaf

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Abstract

Field experiments were conducted during kharif 2014 and 2015 with curry leaf variety Suwasini to study the dissipation pattern of triazophos 40 EC at 500 g a.i. ha-1 and chlorpyriphos 20 EC at 300 g a.i. ha-1 by giving two sprays first at vegetative stage and second 10 days later. The leaf samples collected at the 0, 1st, 3rd, 5th, 7th, 10th, 15th, 20th, 25th, 30th and 45th day after the second spray and soil samples at the 45th day for residue analysis showed initial deposits of triazophos 18.19 mg·kg-1 and chlorpyriphos 14.73 mg·kg-1, respectively. No residues were observed in soil samples. The residues reached to Below Determination Level (BDL) at 20 and 15 days, respectively. As there were no pesticide recommendations and MRLs fixed for any of the pesticide in curry leaf, the day at which residues reached BDL can be suggested as the safe harvest period for curry leaf.

Cite this paper

Gogikar, P. , Vemuri, S. , Reddy, C. N. and Senivarapu, S. (2017). Dissipation Pattern of Triazophos and Chlorpyriphos in Curry Leaf. Open Access Library Journal, 4, e3134. doi: http://dx.doi.org/10.4236/oalib.1103134.

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