Abstract                 Volume:5  Issue-9  Year-2018          Original Research Articles

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Bioefficacy of Acaricides against Red Spider Mite, Tetranychus macfarlanei Baker and Pritchard. Infesting Soybean
S. B. Satish1, S. Pradeep1*, S. Sridhara2, H. Narayanaswamy3 and M. Manjunatha1
1Department of Agricultural Entomology, College of Agriculture
2Department of Agronomy, College of Agriculture
3Department of Plant Pathology, College of Agriculture,
University of Agricultural and Horticultural Sciences, Shivamogga-577204, Karnataka, India
*Corresponding author

A study on the Bioefficacy of acaricides against red spider mite, Tetranychus macfarlanei infesting soybean was conducted. Six new acaricides viz., propargite, fenazaquin, spiromecifen, diafenthiuron, fenpyroximate and chlorfenapyr along with a standard check dicofol were evaluated. Among them Propargite 57 EC @ 427.50 a.i./ha proved to be highly effective in reducing the mite population with highest yield of 21.74 q/ha and also had highest C: B ratio of 1: 3.91 followed by spiromecifen 22.9 SC @ 91.60 a.i./ha which registered yield of 18.66 q/ha and C: B ratio of 1: 3.28.

Keywords: Arthropod pests Management Tetranychus macfarlanei
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How to cite this article:

Satish, S. B., Pradeep, S., Sridhara, S., Narayanaswamy, H., Manjunatha, M., 2018. Bioefficacy of acaricides against red spider mite, Tetranychus macfarlanei Baker and Pritchard. infesting soybean.Int.J.Curr.Res.Biosci.Plantbiol. 5(9): 44-50. doi: https://dx.doi.org/10.20546/ijcrbp.2018.509.004
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