Asian Journal of Bio Science

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Bioefficacy and Dissipation Studies of Spiromesifen against Mite, Polyphagotarsonemus latus Banks on Capsicum under Field Conditions


Affiliations
1 Horticultural Polytechnic, Dr. Y.S.R. Horticultural University, Nuzvid, Krishna (A.P.), India
2 College of Agriculture, Prof. Jayashankar Telangana State Agricultural University, Rajendranagar, Hyderabad (Telangana), India
     

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Field experiments were conducted during 2013-14 and 2014-15 to evaluate the new insecticides for the management of mite, Polyphagotarsonemus latus banks and dissipation of effective insecticide on capsicum. Among the seven insecticides, mean of two seasons under poly house condition, population was less with spiromesifen (0.06 mites/leaf) followed by diafenthiuron (2.21 mites/leaf), triazophos (3.68 mites/leaf) and thiamethoxam (5.30 mites/leaf) which were significantly superior over untreated check (11.33). Spiromesifen 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 spiromesifen was performed on LC- MS/MS (PDA). Initial deposits of 1.61 mg kg-1 of spiromesifen detected at 2 hours after last spray, dissipated to BDL at 10th day after spray. The half-life and safe waiting period for harvest was 2.09 and 10.00 days, respectively.

Keywords

Capsicum, Mite, Spiromesifen, Dissipation.
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  • Bioefficacy and Dissipation Studies of Spiromesifen against Mite, Polyphagotarsonemus latus Banks on Capsicum under Field Conditions

Abstract Views: 324  |  PDF Views: 1

Authors

V. L. Pathipati
Horticultural Polytechnic, Dr. Y.S.R. Horticultural University, Nuzvid, Krishna (A.P.), India
T. V. K. Singh
College of Agriculture, Prof. Jayashankar Telangana State Agricultural University, Rajendranagar, Hyderabad (Telangana), India
S. B. Vemuri
College of Agriculture, Prof. Jayashankar Telangana State Agricultural University, Rajendranagar, Hyderabad (Telangana), India
R. V. S. K. Reddy
College of Agriculture, Prof. Jayashankar Telangana State Agricultural University, Rajendranagar, Hyderabad (Telangana), India
N. B. Bharathi
College of Agriculture, Prof. Jayashankar Telangana State Agricultural University, Rajendranagar, Hyderabad (Telangana), India

Abstract


Field experiments were conducted during 2013-14 and 2014-15 to evaluate the new insecticides for the management of mite, Polyphagotarsonemus latus banks and dissipation of effective insecticide on capsicum. Among the seven insecticides, mean of two seasons under poly house condition, population was less with spiromesifen (0.06 mites/leaf) followed by diafenthiuron (2.21 mites/leaf), triazophos (3.68 mites/leaf) and thiamethoxam (5.30 mites/leaf) which were significantly superior over untreated check (11.33). Spiromesifen 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 spiromesifen was performed on LC- MS/MS (PDA). Initial deposits of 1.61 mg kg-1 of spiromesifen detected at 2 hours after last spray, dissipated to BDL at 10th day after spray. The half-life and safe waiting period for harvest was 2.09 and 10.00 days, respectively.

Keywords


Capsicum, Mite, Spiromesifen, Dissipation.

References