National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
The present laboratory study was undertaken regarding identification and biology of okra mites spps. at laboratory of Department of Agricultural Entomology, VNMKV, Parbhani and some critical aspects were been studied under the supervision of Co-ordinator, AINPAA at GKVK, Bangalore during summer 2014. The morphological characteristic studied showed that the mite spps. identified was Tetranychus macfarlanei Baker and Pritchard. The results of the investigations of biology of T. macfarlanei on okra were studied by maintaining the laboratory temperatures (320C) and relative humidity (85 ± 3%) which showed that the total duration from egg to adult emergence was less in male (10.03 ± 0.55 days) as compared to female (11.22 ± 0.69 days). It was observed that adults of mite spps. T. macfarlanei reproduced sexually and parthenogenetically. Sexually mated females produced both sexes with male to female ratio of 1: 9.6 whereas, unmated females produced only 100 per cent males. During the total oviposition period, mated female laid near about 49.27 ± 6.38 eggs while unmated female laid 22.16 ± 7.14 eggs. The total life cycle from egg stage till death of mite showed that the males completed life cycle earlier within 27.00 ± 0.81 days while females required 30.61 ± 0.82 days.
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