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 study was carried out to construct the life table and to study the age dependent reproduction of the predatory bug Orius bifilarus feeding on fictitious host, eggs of rice meal moth, Corcyra cephalonica (Stainton) (Lepidoptera: Galleriidae) and on its natural host, Thripspalmi Karny (Thysanoptera: Thripidae) (collected from cucumber) under controlled conditions (25 ± 1°C, 65 ± 5% RH). Themean durations of the pre, post and oviposition periods were 4.3, 1.4 and 14.2 days on C. cephalonica eggs and 4.1, 2.1 and 16.4 days on thrips, the difference being non-significant. The fecundity of O. bifilarus reared on Corcyra eggs and thrips did not differ significantly and was 40.8 (20-65) eggs/female and 42.1 (7-67) eggs/female, respectively, though the female survival was slightly longer (22.7 days) on thrips as compared to Corcyra eggs (19.8 days). The intrinsic rate of natural increase (rm) on respective host was 0.088 and 0.085 and hence Corcyra eggs can effectively be used for mass rearing of O. bifilarus.
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