char = D;code = 68
Dissipation kinetics of spinosad on cauliflower (Brassica oleracea var. botrytis. L.) under subtropical conditions of Punjab, India.char = R;code = 82
Publication: Bull Environ Contam Toxicol 2009 Dec ;83(6)::808-11. :doi: 10.1007/s00128-009-9844-z.
Publication Date: 2009 Dec
Study Author(s): Mandal, Kousik;Jyot, Gagan;Singh, Balwinder;
Institution: Department of Entomology, Punjab Agricultural University, Ludhiana, Punjab 141004, India.
[email protected]
Shortcut link to this study:
Residues of spinosad were estimated in cauliflower curds using high performance liquid chromatography (HPLC) and confirmed by high performance thin layer chromatography (HPTLC). Following three application of spinosad (Success 2.5 SC) at 15 and 30 g a.i. ha−1, the average initial deposits of spinosad were observed to be 0.57 and 1.34 mg kg−1, respectively. These residues dissipated below the limit of quantification (LOQ) of 0.02 mg kg−1 after 10 days at both the dosages. The half-life values (T 1/2) of spinosad were worked out to be 1.20 and 1.58 days, respectively, at recommended and double the recommended dosages. Thus, a waiting period of 6 days is suggested for the safe consumption of spinosad treated cauliflower.
PMID: 19672547
How is this determined?
