دورية
In vitro virulence of three Lecanicillium lecaniistrains against the whitefly, Bemisia tabaci(Genn.) (Hemiptera: Aleyrodidae)
| العنوان: | In vitro virulence of three Lecanicillium lecaniistrains against the whitefly, Bemisia tabaci(Genn.) (Hemiptera: Aleyrodidae) |
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| المؤلفون: | Abdulle, Yusuf Ali, Nazir, Talha, Keerio, Azhar Uddin, Ali, Habib, Zaman, Shah, Anwar, Tauqir, Nam, Trinh Duy, Qiu, Dewen |
| المصدر: | Egyptian Journal of Biological Pest Control; December 2020, Vol. 30 Issue: 1 |
| مستخلص: | Background: Whitefly, Bemisia tabaci(Genn.) (Hemiptera: Aleyrodidae), is one of the most harmful pests in greenhouses and in open fields. Main body: The present study aimed to assess in vitro virulence of 3 entomopathogenic fungal strains (EPFs) of Lecanicillium lecanii3 (V-3), 4 (V-4), and 5 (V-5) against the whitefly, Bemisia tabaci(Genn.) (Hemiptera: Aleyrodidae), by spray method. The 3 disparate bioassays were performed encompassed of conidial concentrations and fungal filtrate of the strains, V-3, V-4, and V-5, and also their binary combinations. In the filtrate bioassay, 2 ml of fungal filtrate of each strain was used. In the conidial bioassay, 3 disparate concentrations (1 × 105, 1 × 106, and 1 × 107conidia ml−1) were used for each fungal strain, while in the binary combinations (1 ml filtrate + 1 ml conidia) of V-3 × V-3, V-4 × V-4, and V-5 × V-5 were used. Mortality rates against the whitefly were recorded on the 7th day. In the conidial bioassay, maximum mortality rates were found at V-3 strain (90.6%), V-4 strain (78.4%), and V-5 strain (83.6%) at the highest concentration (1 × 107conidia ml−1) on the 7th day. In the filtrate bioassay, V-3 strain revealed a maximum mortality (93%), V-4 strain (85%), and then V-5 strain (87%) on the 7th day. Moreover, in the bioassay of binary combinations, the highest mortality rate of the whitefly was counted in V-3 × V-3 strain (84.6%), V-4 × V-4 strain (70.6%), and V-5 × V-5 strain (79.8%) on the 7th day. Conclusion: All treatments had the potential to control B. tabacisignificantly. In all bioassays, the V-3 strain was the extreme virulent, and the filtrate application of V-3 strain was the utmost impressive against B. tabaci. |
| قاعدة البيانات: | Supplemental Index |
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Full Text Finder | تدمد: | 11101768 25369342 |
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| DOI: | 10.1186/s41938-020-00328-8 |