Akademik Veri Yönetim Sistemi
Journal of Plant Diseases and Protection, cilt.130, sa.2, ss.271-278, 2023 (SCI-Expanded, Scopus)
In the present study, the effects of different concentrations of culture filtrate (1×, 5×, 10×, 20× and 50×) of two isolates of Beauveria bassiana (BIM-001 and BY2) on Meloidogyne incognita were investigated under controlled conditions on tomato. The control effect (%) of culture filtrate concentrations compared to that of the positive controls, Nostalgist (0.25 ml/l) (B. bassiana strain Bb-1) and Velum (0.16 ml/l) (Fluopyram). It was determined that the control effect of all concentrations of both isolates was significantly higher than the negative control (sterile distilled water). At undiluted concentration of the filtrate (1×), the control effect of BIM-001 and BY2 isolates was found to be over 70% on galls, egg masses, and soil J2 density. In addition, the most dilute concentration (50×) of BIM-001 decreased root galls, egg masses, and soil J2 density of M. incognita by approximately 35%, while BY2 suppressed about 14.5%. In the study, the chemical nematicide Velum provided the highest control (98%) on the number of galls and egg masses formed by M. incognita on tomato roots and soil J2 density. At the same time, 1× and 5× concentrations of BIM-001 ranked second after Velum. BIM-001 was found to have higher nematicidal effect than BY2. The nematicidal effect of Nostalgist was lower than that of the 1× and 5× concentrations of BIM-001 and BY2 isolates. These results indicate that the entomopathogenic fungus B. bassiana is a good alternative for the biocontrol of M. incognita.