Role of four Phytoseiid mite species and Acarophagous Ladybird, Stetlrorus gilvifrons (Mulsant) as Bioagents of the Two Spotted Spider Mite Tetranychus urticae Koch | ||
| Acarines: Journal of the Egyptian Society of Acarology | ||
| Article 10, Volume 4, Issue 1, 2010, Pages 47-55 PDF (6.23 M) | ||
| Document Type: Original research articles | ||
| DOI: 10.21608/ajesa.2021.163530 | ||
| Authors | ||
| M. A. Osman1; G. M. Abou-Elella2; A. A. Tawfik3 | ||
| 1Agricultural Zoology Dept., Faulty of Agric., Mansoura Univ., Mansoura, Egypt. | ||
| 2Pests and Plant Protection Dept., National Research Center, Dokki, Cairo. Egypt | ||
| 3Plant Protection Research Institute, Agriculture Research Center, Dokki, Cairo, Egypt | ||
| Abstract | ||
| Predaceous insects and mites are important biological control agents of the two spotted spider mite Tetranychus urticae Koch. Biology and life table parameters of Stethorus gilvifrons Mulsant, Phytoseiulus persimilis A.-H., Neoseiulus cucumeris (Oud.), Typhlodromips swirskii (A.-H.) and Euseius scutalis A.-H. fed on T. urticae immature was studied at 28 ±1°C. Their female life cycle and life span averaged 17.66, 5.80, 4.40, 6.26 & 6.26 days and 47.60, 19.13, 38.00, l3.20 & 23.93 days, respectively. During its life span, average female fed on 1647. I 3, 343.53, 353.53, 345.66 & 200.33 with a daily rate 34.60, I 7.96, 9.30, 8.00 and 8.37 T. urticae immature respectively. The net rate of natural increase (rm) and the finite rate of increase (λ) of the aforementioned predators were 0.139, 0.294, 0.349, 0.26 I & 0.229; and 1.15, 1.34, 1.41, 1.29 & 1.25, respectively. These of T. urticae were 0.222 and 1.24, respectively. | ||
| Keywords | ||
| Stethorus gilvifrons; Phytoseiulus persimiUs; Neoseiulus cucumeris; Typhlodromips swirskii. Euseius scutalis; Tetranychus urticae; Life tables | ||
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