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Singh, T. V. K.
- Compatibility of Mutant Isolates of Trichoderma spp. with Agrochemicals
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PDF Views:117
Authors
Affiliations
1 Department of Plant Pathology, College of Agriculture, Rajendranagar, Hyderabad - 500 030, Andhra Pradesh, IN
2 Department of Agricultural Entomology, College of Agriculture, Rajendranagar, Hyderabad - 500 030, Andhra Pradesh, IN
3 Administrative Office, Acharya N.G. Ranga Agricultural University, Rajendranagar, Hyderabad-500 030, Andhra Pradesh, IN
1 Department of Plant Pathology, College of Agriculture, Rajendranagar, Hyderabad - 500 030, Andhra Pradesh, IN
2 Department of Agricultural Entomology, College of Agriculture, Rajendranagar, Hyderabad - 500 030, Andhra Pradesh, IN
3 Administrative Office, Acharya N.G. Ranga Agricultural University, Rajendranagar, Hyderabad-500 030, Andhra Pradesh, IN
Source
Journal of Biological Control, Vol 22, No 1 (2008), Pagination: 51-55Abstract
Two stable mutants, one each of Trichoderma viride (TvM1) and Trichoderma harzianum (ThM1), obtained through gamma radiation were tested for their compatibility with different pesticides in order to fit them in integrated disease management for the control of fusarial wilt of chilli. Both the fungal mutants showed high compatibility carbendazim (0.1%), fipronil (0.2%), imidacloprid (0.025%) and fluchloralin (0.33%). TvM4 showed compatibility with captan (0.25%), copper oxy chloride (0.15%), phosalone (0.1%) and butachlor (0.2%) and ThM1, was compatible with mancozeb (0.125%) and phosalone (0.1%). Mancozeb (0.25%), copper oxy chloride (0.3%), dicofol (0.5%), pendimethalin (0.66%) and alachlor (0.4%) were found to be highly inhibitory to the radial growth of the mutants TvM1 and ThM1.Keywords
Agrochemicals, Compalibilily, Trichoderma harzianum Mutant 1 (ThM1), T. viride Mutant i (TvM1).Full Text
- Dissipation Studies of Chlorantraniliprole on Capsicum in Field and Poly House Conditions for Food Safety
Abstract Views :296 |
PDF Views:1
Authors
Affiliations
1 Department of Entomology, Horticultural Polytechnic, Dr. Y.S.R. Horticultural University, Nuzvid, Krishna (A.P.), IN
2 Indian Council of Agricultural Research., Prof. Jayshankar Telangana State Agricultural University, Rajendranagar, Hyderabad (Telangana), IN
3 Department of Entomology, AINP on Pesticide Residues, Prof. Jayshankar Telangana State Agricultural University, Rajendranagar, Hyderabad (Telangana), IN
4 Department of Extension, Dr. Y.S.R. Horticultural University, Nuzvid, Krishna (A.P.), IN
5 Department of Plant Pathology, Prof. Jayshankar Telangana State Agricultural University, Rajendranagar, Hyderabad (Telangana), IN
1 Department of Entomology, Horticultural Polytechnic, Dr. Y.S.R. Horticultural University, Nuzvid, Krishna (A.P.), IN
2 Indian Council of Agricultural Research., Prof. Jayshankar Telangana State Agricultural University, Rajendranagar, Hyderabad (Telangana), IN
3 Department of Entomology, AINP on Pesticide Residues, Prof. Jayshankar Telangana State Agricultural University, Rajendranagar, Hyderabad (Telangana), IN
4 Department of Extension, Dr. Y.S.R. Horticultural University, Nuzvid, Krishna (A.P.), IN
5 Department of Plant Pathology, Prof. Jayshankar Telangana State Agricultural University, Rajendranagar, Hyderabad (Telangana), IN
Source
The Asian Journal of Horticulture, Vol 12, No 1 (2017), Pagination: 22-27Abstract
Chlorantraniliprole is a broad spectrum foliar insecticide with contact and systemic action, widely used on vegetables in India for the management of lepidopteran insects both in field and poly houses. Chlorantraniliprole is not registered for use on capsicum in India and hence, maximum residue limits are not available as per Food Safety and Standards Authority of India. However, use of chlorantraniliprole in open field and poly house is very common hence, chlorantraniliprole residues are found in survey samples. A research project was taken to study dissipation pattern of chlorantraniliprole 20 SC in both open fields and poly houses, when applied thrice @ 60 g a.i.ha-1, first spray at fruit initiation followed by second and third spray at 10 days interval as per the farmers practice. Chlorantraniliprole 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 chlorantraniliprole was performed on LC-MS/MS (PDA). Initial deposits of 0.36 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 1.31 mg kg-1 were dissipated to BDL in 15.0 days. The waiting period for safe harvest was worked out to be 7.0 and 15.0 days when chlorantraniliprole 20 SC @ 60 ml a.i. ha-1 sprayed 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 (2 mg kg-1) of Codex Alimentarius Commission hence, a pre-harvest interval of 7.0 and 15.0 day is recommended.Keywords
Chlorantraniliprole, Capsicum, Field, Poly House, Food Safety.
References
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- Anjali, S., Anjana, S., Rama, B. and Srivastava, P.C. (2008). Dissipation behaviour of chlorantraniliprole insecticides in chilli and soil. Asian J. Water, Environ. & Pollut., 5(2): 49-52.
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- Hoskins, W. M. (1961). Mathemetical treatments of loss of pesticide residues. Plant Protec. Bull., FAO. 9: 163-168.
- Kaur, S., Kaur, S., Srinivasan, R., Cheema, D.S., Tarsem Lal, Ghai, T.R. and Chadha, M.L. (2010). Monitoring of major pests on cucumber, sweet pepper and tomato under net house conditions in Punjab, India. Pest Mgmt Hort. Ecosyst., 16(2): 148-155.
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- Singh, B., Battu, R.S., Kooner, R. and Singh, B. (2012). Simple and efficient method for the estimation of residues of flubendiamide and its metabolic des-iodo flubendiamide. J. Agric. Food Chem., 56: 2299-2304.
- Singh, D., Kaur, S. and Dhillon, T.S. (2004). Protected cultivation of sweet pepper hybrids under net-house in Indian conditions. Acta Hort., 659: 515-521.
- Bioefficacy and Dissipation Studies of Spiromesifen against Mite, Polyphagotarsonemus latus Banks on Capsicum under Field Conditions
Abstract Views :237 |
PDF Views:1
Authors
Affiliations
1 Horticultural Polytechnic, Dr. Y.S.R. Horticultural University, Nuzvid, Krishna (A.P.), IN
2 College of Agriculture, Prof. Jayashankar Telangana State Agricultural University, Rajendranagar, Hyderabad (Telangana), IN
1 Horticultural Polytechnic, Dr. Y.S.R. Horticultural University, Nuzvid, Krishna (A.P.), IN
2 College of Agriculture, Prof. Jayashankar Telangana State Agricultural University, Rajendranagar, Hyderabad (Telangana), IN
Source
Asian Journal of Bio Science, Vol 12, No 2 (2017), Pagination: 202-208Abstract
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
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- Kaur, S., Kaur, S., Srinivasan, R.,Cheema, D.S., Tarsem Lal, Ghai,T.R. and Chadha, M.L. (2010).Monitoring of major pests on cucumber, sweet pepper and tomato under net house conditions in Punjab, India. Pest Mgmt. in Hort. Ecosyst., 16 (2): 148-155.
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