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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39
For more details click here

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Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2018.7(6): 1688-1693
DOI: https://doi.org/10.20546/ijcmas.2018.706.200


Dissipation Studies of Thiamethoxam on Capsicum under Field and Poly House Conditions
V. L. Pathipati1*, T. V. K. Singh2, S. B. Vemuri3, R. V. S. K. Reddy4, N. bjkB. Bharathi5, N. R. Reddy6 and Aruna7
1(Entomology) and Principal, HPT, Dr YSR Horticultural University, Andhra Pradesh, India
2(ICAR), PJTSAU, Rajendranagar, Hyderabad, Telangana, India
3AINP on Pesticide Residues, PJTSAU, Rajendranagar, Hyderabad, Telangana, India
4Dr YSR Horticultural University, Andhra Pradesh, India
5Department of Plant Pathology, PJTSAU, Rajendranagar, Hyderabad, Telangana, India
6Department of Entomology, PJTSAU, Rajendranagar, Hyderabad, Telangana, India
7AINP on Pesticide Residues, PJTSAU, Rajendranagar, Hyderabad, Telangana, India
*Corresponding author
Abstract:

Thiamethoxam25 % WG is a second neonicotinoid with highly systemic and broad spectrum insecticide used against sucking pests of vegetables in India. Thiamethoxam residues were quantified through regular sampling till the residues are below determination level (BDL) of 0.05 mg kg−1 following the validated QuEChERS method. The qualitative and quantitative analysis of thiamethoxam was performed on LC- MS/MS(PDA). Initial deposits of 1.62 mg kg-1 were detected in capsicum samples collected from open filed, which dissipated to BDL in 7.0 days while in poly house, initial deposits of 2.77 mg kg-1 were dissipated to BDL in 15.0 days. The waiting period for safe harvest was worked out to be 10.0 and 15.0 days when thiamethoxam25 % WG@ 50 ml a.iha-1sprayed thrice in open and poly house conditions, respectively. Dissipation is slow in poly house compared to open fields due to various factors. In both situations initial deposits are lower than the MRL (10 mg kg−1) of Codex Alimentarius Commission hence a pre-harvest interval of 7.0 and 15.0 day is recommended.


Keywords: Capsicum, thiamethoxam, dissipation, field, poly house conditions
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How to cite this article:

Pathipati V. L., T. V. K. Singh, S. B. Vemuri, R. V. S. K. Reddy, N. B. Bharathi, N. R. Reddy and Aruna. 2018. Dissipation Studies of Thiamethoxam on Capsicum under Field and Poly House Conditions.Int.J.Curr.Microbiol.App.Sci. 7(6): 1688-1693. doi: https://doi.org/10.20546/ijcmas.2018.706.200