Effects of local isolates of Beauveria bassiana(Balsamo) Vuillemin on the two-spotted spider mite, Tetranychus urticae(Koch) (Acari: Tetranychidae)
In: Egyptian Journal of Biological Pest Control, Jg. 31 (2021-12-01), Heft 1
serialPeriodical
Zugriff:
Background: The two-spotted spider mite, Tetranychus urticae(Koch) (Acari: Tetranychidae), is a widely distributed plant-feeding pest that causes significant yield losses in a wide range of crops. Newly developed or improved environmentally friendly biocontrol agents serve as an alternative to traditional pest control tools. Experiment of the effects of 2 local fungal isolates of Beauveria bassiana(BGF14 and BCA32) was carried out against T. urticaeunder laboratory conditions. Results: Both tested isolates had lethal effect in a short time after application, and this effect increased as time progressed. BGF14 and BCA32 isolates caused T. urticaemortality rates ranging from 25.88 to 61.92 and 32.36 to 62.03% when applied at the concentrations between 1×10 5 and 1×10 8 conidia/ml, respectively. According to the Probit analysis performed on the effect of fungi on T. urticaeadults, the LC 50 values of BGF14 and BCA32 isolates on the 7th day after inoculation were 2.6×10 6 and 6.3×10 4 conidia/ml, respectively, and the LT 50 values for both fungi applied at a concentration of 10 8 conidia/ml were 2.14 and 2.23 days, respectively. Conclusions: The 2 isolates of B. bassiana(BGF14 and BCA32) had the potentials to suppress T. urticaepopulation and can be recommended as promising biocontrol agent candidates for control of T. urticae.
Titel: |
Effects of local isolates of Beauveria bassiana(Balsamo) Vuillemin on the two-spotted spider mite, Tetranychus urticae(Koch) (Acari: Tetranychidae)
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Autor/in / Beteiligte Person: | Yucel, Cenk |
Zeitschrift: | Egyptian Journal of Biological Pest Control, Jg. 31 (2021-12-01), Heft 1 |
Veröffentlichung: | 2021 |
Medientyp: | serialPeriodical |
ISSN: | 1110-1768 (print) ; 2536-9342 (print) |
DOI: | 10.1186/s41938-021-00409-2 |
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