Temperature-Dependent Development, Life Table Parameters and Predation Rate of Euseius scutalis (A.- H.) Fed on the Two-Spotted Spider Mite | ||||
| Acarines: Journal of the Egyptian Society of Acarology | ||||
| Article 4, Volume 7, Issue 1, July 2013, Page 11-17 PDF (218.77 K) | ||||
| Document Type: Original research articles | ||||
| DOI: 10.21608/ajesa.2013.4918 | ||||
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| Authors | ||||
| M. Osman1; G. Abou-Elella2; Alyaa Tawfik3 | ||||
| 1Agric. Zool. Dept., Fac. of Agric., Mansoura Univ., Mansoura, Egypt | ||||
| 2Pests and Plant Protec. Dept., Nat. Res. Center, Dokki, Cairo, Egypt | ||||
| 3Plant Protec. Res. Inst., Agric. Res. Cent., Dokki, Cairo, Egypt | ||||
| Abstract | ||||
| Biological aspects, thermal requirement, predation rate and life table parameters of the phytoseiid predatory mite Euseius scutalis (A.– H.) fed on nymphs of Tetranychus urticae Koch was determined at four temperature degrees, 15, 20, 25 and 30 °C. The total developmental durations of female was correlated negatively with increasing temperature. Minimum developmental thresholds (To) of egg, larva, protonymph, deutonymph, total immature stages and life cycle of E. scutalis female averaged, 4.26, 10.98, 6.90, 1.20, 2.49 and 2.89; respectively. On the other hand E. scutalis female required 208.33 DD to reach adulthood. The net rate of natural increase (rm) was 0.008, 0.126, 0.166 and 0.193, whereas the finite rate of increase (erm) averaged 1.092, 1.134, 1.181 and 1.213 at 15, 20, 25 and 30 o C; respectively. | ||||
| Keywords | ||||
| Euseius scutalis; Tetranychus urticae; biology; life table; Thermal requirement; Predation rate | ||||
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