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Assessment of Trifloxystrobin 25% + Tebuconazole 50%-75 WG Bioefficacy, Safety and Residue Dynamics against Leaf Spot of Cabbage.

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Title Assessment of Trifloxystrobin 25% + Tebuconazole 50%-75 WG Bioefficacy, Safety and Residue Dynamics against Leaf Spot of Cabbage.
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Creator Sujoy Saha, Sandip Hingmire, T.P. Ahammed Shabeer, Kaushik Banerjee, Nikhil Ashtekar, Ashlesha Patil and A. B. Rai
 
Subject Dissipation, early blight, bioefficacy, PHI, combination fungicide
 
Description Not Available
Cabbage (Brassica oleracea var. capitata) is a leafy vegetable grown as an annual crop in India. It comprised about 5.5% of the total vegetable production in the country with production of 9.04 MT from an approximate cultivated area of 0.04 million hectare [1]. The vegetable is consumed either as raw salad or by steaming or cooking it. It is an excellent source of vitamin B6, C and K and play an important role in lowering the blood cholesterol levels [2]. Export of cabbage from India has been showing an increasing trend since last few years, with major export destination being Pakistan, United Arab Emirates, Sri Lanka, Maldives and Nepal [1].
The sustainable production of cabbage is severely affected by leaf spot disease caused by Alternaria brassicae
(Berk.) Sacc., both in India as well as in the global paradigm and the extent of damage is assessed to be around 3.1 to 70.0% [3, 4]. Lack of effective resistance genes in cabbage has limited the efficacy of resistance breeding in management of leaf spot disease [5] and hence chemical interventions via fungicides became the major arsenal to combat the disease. Several conventional fungicides have been recommended for the purpose [6, 7] but, limited control of the disease, resistance and environmental issues have brought to the fore the mandate to search for new and safer fungicides. This study was envisaged for evaluating the bioefficacy, understanding the residue dynamics, and assessing the safety of a combination fungicide involving methoxyimino acetate strobilurin compound viz. trifloxystrobin (methyl (E) - methoxyimino - [(E) - α - [1 - (α,α,α - trifluoro - mtolyl) ethylideneaminooxy] - o - tolyl]acetate) and a triazole compound viz. tebuconazole (1 - (4 - Chlorophenyl) - 4,4 - dimethyl - 3 - (1,2,4 - triazol - 1 - ylmethyl)pentan - 3 - ol) for two consecutive
seasons against the leaf spot disease of cabbage. The residue dissipation behavior of these chemicals in the field conditions was also investigated to evaluate consumer safety. These chemicals do not have recommended pre - harvest intervals (PHIs) for cabbage due to lack of information regarding their residue dissipation kinetics under field conditions. This might result in apprehension of food safety issues associated with their usage for domestic consumption as well as export. To ensure food safety to the consumers, the residues of these chemicals in the European Union (EU) are regulated at the maximum residue limit (MRL) of 1.0 mg Kg - 1for tebuconazole and 0.5 mg Kg - 1for trifloxystrobin [8] and hence it is of profound importance to establish their individual PHI so as to minimize accumulation of their residues below the respective MRLs at the stage of harvest there by to ensure smooth trade and consumer safety.
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Date 2022-04-20T11:07:42Z
2022-04-20T11:07:42Z
2018-01-01
 
Type Research Paper
 
Identifier Sujoy Saha, Sandip Hingmire, T.P. Ahammed Shabeer, Kaushik Banerjee, Nikhil Ashtekar, Ashlesha Patil and A. B. Rai (2018) Assessment of Trifloxystrobin 25% + Tebuconazole 50%-75 WG Bioefficacy, Safety and Residue Dynamics against Leaf Spot of Cabbage. Chem Sci Rev Lett 7(28), 867-874.
2278-6783
http://krishi.icar.gov.in/jspui/handle/123456789/71642
 
Language English
 
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Publisher Not Available