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Field experiment was conducted to evaluate the efficacy of eco-friendly agents and acaricides against bhendi red spider mite Tetranychus urticae Koch with six treatments including were assessed in the field trial at  Paniyapuram village, Trichy using Mahyco hybrid variety in RBD with three replications. Pre count ranges from 12 to 12.90 mites/ cm2. The results revealed that, fenazaquin 10 EC 1 ml/l effected 67.63 per cent reduction of mite population, Bifenthrin recorded 61.48 per cent reduction over control followed by Azadirachtin 1% (45.18 %), Mahua oil + Neem oil 3 % (40.74 %) and Neem Oil 3% (31.09 %) were also found to be effective by recording a mean reduction percentage up to 15 DAT (Days after treatment).  The results of the second round revealed that, fenazaquin 10 EC 1 ml/l effected 90.79, 90.00, 88.24, and 88.24 per cent reduction of mite population at 3, 7, 10 and 14 Days after treatment respectively.  Bifenthrin 10 EC 100 g a.i. ha-1, Azadirachtin 1% and Mahua oil + Neem oil 3 % were also found to be effective by recording a mean reduction percentage of 89.26, 84.05 and 68.40 respectively, up to 15 DAT after two rounds of spraying.  In Neem oil the per cent reduction of mite population ranged from 60.00 to 64.47. The highest yield was recorded 10.85 kg/ plot in the fenazaquin 10 EC 1 ml/l treated. (Table 1 – 3).

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Grandjean, F. 1948.  Quelques caracters des Tetranyques. Bull. Museum naturelle Paris. Series, 2(20): 517-524.

Baskaran, V. and V. Sathyaseelan. 2017. Phytochemicals—an ecofriendly pest management tool against two spotted spider mite, Tetranychus urticae (koch) on bhendi. Progressive Research, 12(special-II).pp. 1649-1651.

Daniel Bernardi, Marcos Botton, Uemerson Silva da Cunha, Oderlei Bernardi, Thibaut Malausa, Mauro Silveira Garcia and Dori Edson Nava. 2012. Effects of azadirachtin onTetranychus urticae(Acari: Tetranychidae) and its compatibilitywith predatory mites (Acari: Phytoseiidae)on strawberry. (wileyonlinelibrary.com) DOI 10.1002/ps.3364.

Pande, Y.D., Majumdar Mita and M.L. Roy. 1991. Laboratory evaluation of various concentrations of neem (Azadirachta indica) leaf extract against Tetranychus neocalendonicus Andre infectinf okra (Hibiscus esculents) in Tripura. In: A.B. Mukherjee, A.K. Somchoudhury and P.K. Sarkar (Eds.) Contribution to Acaroloigical Researches in India. Kalyani, W. Bengal.

Yathiraj, B.R. and P.S. Jagadish. 1999. Plant extracts – Future promising tools in the integrated management of spider mite Tetranychus urticae (Acari: Tetranychidae) J. Acarol., 15(1&2): 1-5.