Vol. 6 (3) : May-June 2015 issue
Green Farming Vol. 6 (3) : 617-621 ; May-June, 2015
Dissipation dynamics of profenophos in polyhouse and open fields in tomato and evaluation methods for removal of pesticide residues
SUDHAKAR S. KELAGERIa1, CH. SREENIVASA RAOb2, I.B. BIRADARc3, VASUDEVA NAIK K.d4* and SUJATAd5
aDeptt. of Entomology, College of Agriculture, Rajendranagar, bAll India Network Project on Pesticide Residues, EEI Premises, Acharya N.G. Ranga Agricultural University, Rajendranagar - 500 030, Hyderabad (Telangana)
cMHREC, University of Horticultural Sciences, Bagalkot - 587 104 Udyanagiri (Karnataka) dUniversity of Agricultural Sciences, Dharwad - 580 005 (Karnataka)
Designation : 1Student, 2Senior Scientist, 3Associate Professor, 4,5Research Scholar *(vasuphd.abm@gmail.com)
Subject : Entomology
Paper No. : P-2542
Total Pages : 5
Received : 25 August 2014
Revised accepted : 27 February 2015
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Citation :
SUDHAKAR S. KELAGERI, CH. SREENIVASA RAO, I.B. BIRADAR, VASUDEVA NAIK K and SUJATA. 2015. Dissipation dynamics of profenophos in polyhouse and open fields in tomato and evaluation methods for removal of pesticide residues. Green Farming Vol. 6 (3) : 617-621 ; May-June, 2015
ABSTRACT
Dissipation pattern of profenophos 50% EC at 500 g a.i. ha-1 was evaluated in two different situations i.e. polyhouse and open fields. Two sprays of profenophos were given, first at fruit initiation and second spray was given 10 days after last spray. The samples of tomato fruits drawn on 0, 1, 3, 5, 7, 10, 15 and 20 days after the second spray revealed average initial deposit of 1.51 and 3.25 mg kg-1, which reached BDL on 7th and 15th day in open field and polyhouse studies respectively. Half-life values of profenophos in open field and polyhouse tomatoes were 3.60 and 3.23 days respectively. In both poly house and open field initial deposits were below MRL suggested by Codex Alimentarius Commission (10 mg kg-1). Among various decontamination methods tested, veggy wash found to be very effective in removing pesticide residues to an extent of 75.84%, followed by 4% acetic acid solution with percent removal of 71.22% and tap water wash was least effective treatment with percent removal of 37.60%.
Key words :
Decontamination, Pesticide residue, MRL, Polyhouse, Profenophos, Tomato.
