Dissipation Behaviour of Spinosad Insecticide in Chilli and Soil
The persistence of Spinosad insecticide in chilli fruits was evaluated at two application rates (73.0 g a.i./ ha and 146.0 g a.i./ha) by high performance liquid chromatography. The dissipation of the insecticide from chilli fruits appeared to occur in two phases. Each phase followed first-order kinetics. Half life values of Spinosad for the first and second phase on green chilli were found to be 1.48 d and 0.70 d respectively for 73.0 g a.i./ha application rate, and 6.72 d and 5.55 d respectively for 146.0 g a.i./ha application rate. No detectable residues (<0.05 µg/g) were found in red chilli and soil, sampled on the 15th day of application which depicts that spinosad is environmentally safe as regards soil pollution.
Mukhopadhyay, A.N. (2003). Innovations in Plant Pest Management by ecofriendly biopesticides. In: Pesticide usage scenario in India and variable alternatives. Voluntary Health Association of India, New Delhi, pp. 45-55.
Chaudhury, B. (2000). Solanaceous fruits and cole crops. In: Vegetables. National Book Trust, pp. 63-84.
Thompson, D.G., Harris, B.J., Buscarini, T.M. and D.T. Chartrand (2002). Fate of Spinosad in litter soils of a mixed conifer stand in the Acadian forest region of New Brusnwick. Journal of Agriculture and Food Chemistry,50(4): 790-795.
Turnbull, G.C. (2003). Success 480 SC – New Class Insecticide for use in potatoes. Proceedings of the 3rd Canadian Workshop on Fusarium Head Blight held at Delta Winnipeg, Winnipeg Manitoba, Dec. 9th to 12th, 2003, pp. 220-222.
Kirst, H.A., Michel, K.H., Mynderse, J.S., Choco, E.H., Yao, R.C., Nakatsukasa, W.M., Boeck, L.D., Occlowitz, J., Paschel, J.W., Deeter, J.B. and G.D. Thompson (1992). Discovery, isolation and structure elucidation of a family of structurally unique fermentation derived tetracyclic macrolide. In: D.R. Baker, J.G. Fenyes and J.J. Steffens
(Eds), Synthesis and Chemistry of Agrochemicals. III. Am. Chem. Soc., Washington, D.C., pp. 214-215.
Flury, M. (1996). Experimental evidence of transport of pesticides through field soils. J. Envi. Qual., 25: 25-45.
Saunders, D.G. and B.L. Bret (1997). Fate of Spinosad in the environment. Down to Earth, 52(1): 14-20.
Arora, S. (2006). Pesticides and Environment in Today’s Context. Agriculture Today, pp. 53-56.
West, S.D., Yeh, L.T., Shwedler, D.A., Turner, L.G., Thomas, A.D. and D.O. Duebelbeis (2000). Determination of spinosad and its metabolite in food and environmental matrices. 1. High-performance liquid chromatography with ultraviolet detection. J. Agric. Food Chem., 48: 5131-5137.
Sparks, T.C., Thompson, G.D., Larson, L.L., Kirst, H.A., Jantz, O.K., Worden, T.V., Hertlein, M.B. and J.D. Busacca (1995). Biological characteristics of the spinosyns: New naturally derived insect control agents. Proc. Beltwide cotton conf., pp. 903-907.