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
givingtwo 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
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