BIOLOGY OF RED SPIDER MITE, TETRANYCHUS MACFARLANEI BAKER AND PRITCHARD ON SOYBEAN

S.B. SATISH¹, S. PRADEEP²*, S. SRIDHARA³, H. NARAYANASWAMY⁴, M. MANJUNATHA^5
1Department of Agricultural Entomology, College of Agriculture, University of Agricultural and Horticultural Sciences, Shivamogga, 577 204, Karnataka, India
²Department of Agricultural Entomology, College of Agriculture, University of Agricultural and Horticultural Sciences, Shivamogga, 577 204, Karnataka, India
³Department of Agronomy, College of Agriculture, University of Agricultural and Horticultural Sciences, Shivamogga, 577 204, Karnataka, India
⁴Department of Plant Pathology, College of Agriculture, University of Agricultural and Horticultural Sciences, Shivamogga, 577 204, Karnataka, India
⁵University of Agricultural and Horticultural Sciences, Shivamogga, 577 204, Karnataka, India
* Corresponding Author : drpradeepent@rediffmail.com

Received : 16-08-2018     Accepted : 20-09-2018     Published : 30-09-2018
Volume : 10     Issue : 9       Pages : 1370 - 1373
Int J Microbiol Res 10.9 (2018):1370-1373

Keywords : Red spider mite, oilseed crops
Conflict of Interest : None declared
Acknowledgements/Funding : The authors are thankful to the Directorate of Research, University of Agricultural and Horticultural Sciences, Shivamogga, 577 204, Karnataka for funding this work in terms of Staff Research Project
Author Contribution : All author equally contributed

Studies on biology of red spider mite, T. macfarlanei on soybean was carried out at Department of Agricultural Entomology, College of Agriculture, Navile, Shivamogga. The total duration from egg to adult emergence or the total developmental period was less in male (10.62 ± 0.69 days) compared to female (11.92 ± 0.89 days). Adult longevity for male was 11.37 ± 0.69 days whereas, the adult female lived for 24.61 ± 0.57 days. Fecundity results indicated that mated females laid more eggs than unmated females. Mated and unmated females laid, on an average, 54.93 ± 8.08 and 31.87 ± 2.61 eggs, respectively. Correspondingly mated females laid 2.12 to 3.13 (2.69 ± 0.18) eggs per day and unmated females laid 1.36 to 1.59 (1.44 ± 0.12) eggs per day.

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