Effect of Some Soybean Varieties on Biological Aspects and Fecundity of The Two Spotted Spider Mite , Tetranychus urticae Koch ( Acari: Tetranychidae) | ||||
| Egyptian Academic Journal of Biological Sciences. A, Entomology | ||||
| Article 8, Volume 11, Issue 2, March 2018, Page 89-94 PDF (670.19 K) | ||||
| DOI: 10.21608/eajb.2018.11897 | ||||
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| Author | ||||
| Seham A. Ezz El-Dein | ||||
| Plant Protection Res. Inst.( A.R.C.) Dokki, Giza, Egypt | ||||
| Abstract | ||||
| Biological and fecundity of the two spotted spider mite, Tetranychus urticae Koch reared on three soybean varieties: Giza 111, Giza 83 and Giza 22 were evaluated under laboratory conditions of 25±1 oC and 65± 5% R. H. The developmental times from egg to adult stage ranged from 14.15 to 11.4 days on Giza111 and Giza83 varieties, while, on Giza22 variety it lasted 10.10 days for female, while, the male life cycle stayed 12.3, 10.2 and 9.3 days, when, fed on the same soybean varieties. Female longevity was differed among the tested soybean varieties whereas, it lasted 10.90, 9.15 and 9.45 days when fed on, Giza111, Giza83, and Giza22 varieties of soybean , respectively. The tested soybean varieties greatly affected fecundity, female deposited of the reared mite , where the maximum number of laid eggs were registered on Giza22 variety ( 45.50 egg), while, the least number of laid eggs of the spider mite, T. urticae was observed on Giza111 variety( 34.50). | ||||
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