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CLC number: S571.1

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Received: 2006-03-18

Revision Accepted: 2006-05-17

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Cited: 9

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Citations:  Bibtex RefMan EndNote GB/T7714

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Journal of Zhejiang University SCIENCE B 2006 Vol.7 No.8 P.619-622

http://doi.org/10.1631/jzus.2006.B0619


Imidacloprid in processed tea and tea liquor


Author(s):  SANYAL N., HAZRA D., PAL R., SOMCHAUDHURY A.K., CHOWDHURY A.

Affiliation(s):  Department of Agricultural Chemicals, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur 741 252, India; more

Corresponding email(s):   agchemical@rediffmail.com

Key Words:  Imidacloprid, Processed tea, Tea liquor, Residue, Dissipation


SANYAL N., HAZRA D., PAL R., SOMCHAUDHURY A.K., CHOWDHURY A.. Imidacloprid in processed tea and tea liquor[J]. Journal of Zhejiang University Science B, 2006, 7(8): 619-622.

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author="SANYAL N., HAZRA D., PAL R., SOMCHAUDHURY A.K., CHOWDHURY A.",
journal="Journal of Zhejiang University Science B",
volume="7",
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pages="619-622",
year="2006",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2006.B0619"
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T1 - Imidacloprid in processed tea and tea liquor
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A1 - HAZRA D.
A1 - PAL R.
A1 - SOMCHAUDHURY A.K.
A1 - CHOWDHURY A.
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Abstract: 
imidacloprid is a newly introduced broad-spectrum chloronicotinyl insecticide and will find its way in agricultural production, particularly in Asia. However, information on the fate of imidacloprid in crop plants is lacking. The degradation of imidacloprid in processed CTC tea and tea liquor was investigated in the present study in which imidacloprid was applied at recommended application rate (30.0 g a.i./ha) and twice the recommended application rate (60.0 g a.i./ha) for three consecutive seasons. imidacloprid was rapidly dissipated in processed tea following first order reaction kinetics at all application rates and had half-lives of 0.91~1.16 d with the residue in tea liquor found to be below detectable limit on 3rd day samples. The study revealed that imidacloprid is safe for human consumption and will not pose any residual toxicity problem.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

[1] Bai, D., Lummis, S.C.R., Leicht, W., Beer, H., Sattelle, B.D., 1991. Action of imidacloprid and a related nitromethyl on cholinergic receptors of an identified insect motor neurone. Pest. Sci., 33:197-204.

[2] FAOSTAT, 2005. Http://faostat.fao.org/faostat/collections?subset=FoodQuality. Last Updated on Apr. 12, 2005 and Accessed on Jan. 30, 2006.

[3] Ignacimuthu, S., Jayaraj, S., 2003. Eco-friendly approaches for sustainable insect pest management. Current Sci., 84:1292-1293.

[4] Ishii, Y., Kobori, I., Araki, Y., Kurogochi, S., Iwaya, K., Kagabu, S., 1994. HPLC determination of the new insecticide imidacloprid and its behaviour in rice and cucumber. J. Agr. Food Chem., 42(12):2917-2921.

[5] Roy, S., Kole, R.K., Sarkar, M.A., Chowdhury, A., 2005. Catalytic Photodegradation of the Insecticide Imidacloprid in Aqueous Media Exposed to Sunlight. The BCPC International Congress and Exhibition—Crop Science & Technology. Glassgow, UK, p.821-826.

[6] Senapati, B.K., Panigrahi, P.K., Lavelle, P., 1994. Macrofaunal Status and Restoration Strategy in Degraded Soil under Intensive Tea Cultivation in India. Transactions of the 15th World Congress of Soil Science, Vol. 4A. Acapulco, Mexico, p.64-75.

[7] Tomizawa, M., Yamamoto, I., 1993. Structure activity relationship of nicotinoids and imidacloprid analogues. J. Pest. Sci., 18:91-98.

[8] Wamhoff, H., Schneider, V., 1999. Photodegradation of imidacloprid. J. Agr. Food Chem., 47(4):1730-1734.

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