##plugins.themes.bootstrap3.article.main##

S. K. Maurya R. P. Maurya D. Singh

Abstract

The present investigation was carried out at Vegetable Research Centre, G. B. Pant University of Agriculture and Technology, Pantnagar, Uttarakhand during the 2013 and 2014 to evaluate the effectiveness of thiamethoxam, used as seed treatment against the sucking insects of tomato. The seed treatment with thiamethoxam protected tomato seedlings from aphids and thrips at the early season from the onset of seed planting. There was a fast initial effect against the pests then gradually decreased to reach a moderate effect. Data revealed that Thiamethoxam 70% WS @ 4.2 g a.i./kg of seed showed the significant pest reduction followed by Thiamethoxam 70% WS @ 3.85 g a.i./kg of seed. Highest yield was recorded by Thiamethoxam 70% WS @ 4.2 g a.i./kg of seed (28.25 t/ha) closely followed by Thiamethoxam 70% WS @ 3.85 g a.i./kg of seed (25.00 t/ha) as compared to untreated check (20.91t/ha). Percent increase in yield over control was highest (35.10%) in Thiamethoxam 70% WS @ 4.2 g a.i./kg of seed followed by Thiamethoxam 70% WS @ 3.85 g a.i./kg of seed (19.56%). The percent reductions of predators by Thiamethoxam, used as seed treatment, in both the seasons ranged from 1.65- 2.58% which was very minimum. Hence, it was concluded that the seed treatment of tomato with Thiamethoxam 70% WS @ 4.20 g a.i/kg of seed reduced the early season insect-pests (aphid and thrips) and had very less effect of natural enemies population as
compared to control and also increased the fruit yield significantly than other treatments.

##plugins.themes.bootstrap3.article.details##

##plugins.themes.bootstrap3.article.details##

Keywords

Seed treatment, Sucking insects, Thiamethoxam, Tomato

References
Akashe, V.B., Gud, M. A., Shinde, S. K. and Deshpande, A. N. (2008). Bioefficacy of some newer insecticides against Uroleucon compositae (Theobald) infesting safflower, Carthamus tinctotius Linnaeus. Safflower: unexploited potential and world adaptability. 7th Inter-national safflower conference, Wagga Wagga, New South Wales, Australia, 3-6 November, 2008. 1-6.
Anonymous (2006). Indian Horticulture Database, Chapter 10, Tomato, 119 pp.
Blackman, R.L. and Eastop, V.F. (2000). Aphids on the World’s Crops, An Identification and Information Guide, 2nd edition, John Wiley & Sons Ltd, Chichester, UK.
Dhaka, S.S., Singh, G., Malik, Y.P.S. and Kumar, A. (2009). Efficacy of new insecticides against mustard apiiid, Lipaphis erysimi (Kalt.). J. Oilseeds Res., 26(2): 172.
Dhawan, A.K., SariKa, S. and Anan, A. (2008). Relative toxicity of different insecticides against cotton aphid, Aphis gossypii Glover. Environ. Ecol., 26 (4B): 2067–2069.
El-Naggar, J.B. (2006). Population density of certain early cotton season insects and associated predators influ-enced by seed treatments. J. Agric. Sci. Mansoura Univ., 13 (11): 7423–7434.
El-Zahi, S.E., Aref, S.A. (2011). Field evaluation of recom-mended insecticides to control bollworms on cotton aphid, Aphis gossypii glover and their side effect on associated predators. J. Pest. Cont. Environ. Sci., 19 (1): 55–68.
Franca, F. and Branco, M.C. (1987). Resistência varietal a insetos e ácaros em hortaliças. Horticultura Brasileira, 5: 8-11.
Gomez, K.A. and Gomez, A.A. (1984). Statistical Proce-dures for Agricultural Research, John Wiley and Sons, New Delhi. 680 pp.
Gore, B. B., Suryawanshi, D. S. and Shirale, D. K. (2010). Bioefficacy of newer insecticide molecules against saf-flower aphid, Uroleucan compositae (Theobald). Kar-nataka J. Agric. Sci., 23: 99-100.
Misra, H.P. (2002). Field evaluation of some newer insecti-cides against aphids (Aphis gossypii) and jassids (Amrasca biguttula) on okra. Indian J. Entomol., 64 (1): 80–84.
Moser SE, Obrycki J.J. (2009). Non-target effects of neoni-cotinoid seed treatments; mortality of coccinellid larvae related to zoophytophagy. Biol. Control. 51:487-492.
Namba, R. and Sylvester, E.S. (1981). Transmission of cauli-flower mosaic virus by the green peach, turnip, cabbage, and pea aphids. J. Eco. Entomol., 74: 546-551.
Siebert, M.W., Thomas, J.D., Nolting, S.P., Leonard, B.R., Gore, J., Catchot, A., Lorenz, G.M., Stewart, S.D., Cook, D.R., Walton, L.C., Lassiter, R.B., Haygood, R.A. and Siebert, J.D. (2012). Field Evaluations of Sul-foxaflor, a Novel Insecticide, Against Tarnished Plant Bug (Hemiptera: Miridae) in Cotton. The J. Cotton Sci., 16: 129-143.
Uneme, H. (2011). Chemistry of clothianidin and related compounds. J. Agric. Food Chem., 59 (7): 2932–2937.
Section
Research Articles

How to Cite

Evaluation of thiamethoxam 70% WS as seed treatment against early sucking pests of tomato. (2015). Journal of Applied and Natural Science, 7(2), 763-767. https://doi.org/10.31018/jans.v7i2.680