title: Persistence behaviour of thiamethoxam and lambda cyhalothrin in transplanted paddy.
abstract: A field study was conducted in Pre-Kharif season 2007 on paddy to determine the persistence of thiamethoxam (12.6%) and lambda cyhalothrin (9.4%) [in a 'Readymix' formulation Alika 247 ZC], following the application of 33 g. a.i. ha⁻¹ (T₁) and 66 g. a.i. ha⁻¹ (T₂). Spraying of insecticide was done during milking stage of the crop (63 days after transplantation). Thiamethoxam and lambda cyhalothrin residues were estimated by HPLC and GLC respectively. The half-life values were 5.2-5.8 and 4.8 days for thiamethoxam and lambda cyhalothrin respectively. No residue was detected in the harvested paddy, straw, grain, and soil samples.
authors: Department of Agricultural Chemicals, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, West Bengal, India.
authors: Suhrid Ranjan
authors: SR
authors: Barik
authors: Pritam
authors: P
authors: Ganguly
authors: Samir Kumar
authors: SK
authors: Kunda
authors: Ramen Kumar
authors: RK
authors: Kole
authors: Anjan
authors: A
authors: Bhattacharyya
mesh_terms: D004784:Environmental Monitoring; D007306:Insecticides / Q000032:analysis* / Q000737:chemistry / Q000378:metabolism; D000073943:Neonicotinoids; D009570:Nitriles / Q000032:analysis* / Q000737:chemistry / Q000378:metabolism; D009574:Nitro Compounds / Q000032:analysis* / Q000737:chemistry / Q000378:metabolism; D012275:Oryza / Q000378:metabolism; D010078:Oxazines / Q000032:analysis* / Q000737:chemistry / Q000378:metabolism; D011722:Pyrethrins / Q000032:analysis* / Q000737:chemistry / Q000378:metabolism; D012989:Soil Pollutants / Q000032:analysis* / Q000737:chemistry / Q000378:metabolism; D000077922:Thiamethoxam; D013844:Thiazoles / Q000032:analysis* / Q000737:chemistry / Q000378:metabolism
chemical_list: D007306:Insecticides; D000073943:Neonicotinoids; D009570:Nitriles; D009574:Nitro Compounds; D010078:Oxazines; D011722:Pyrethrins; D012989:Soil Pollutants; D013844:Thiazoles; D000077922:Thiamethoxam; C037304:cyhalothrin