Efficacy of Pantoea agglomerans strain RK-84 in controlling fire blight caused by Erwinia amylovora in pear orchards


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Albastawisi E. M., Kaya M., Fırat Ş., KOTAN R.

Journal of Plant Pathology, 2024 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Basım Tarihi: 2024
  • Doi Numarası: 10.1007/s42161-024-01809-7
  • Dergi Adı: Journal of Plant Pathology
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, BIOSIS, CAB Abstracts, Environment Index
  • Anahtar Kelimeler: Biological control, Biopesticide, Erwinia herbicola, Pear, PGPB
  • Atatürk Üniversitesi Adresli: Evet

Özet

Erwinia amylovora is a bacterial pathogen responsible for fire blight, a devastating disease that affects apples, pears, and other plants in the Rosaceae family worldwide. Biological control is considered an environmentally friendly alternative to chemical treatments, with Pantoea agglomerans strains playing a key role. This study aims to assess the efficacy of P. agglomerans strain RK-84 in controlling fire blight caused by E. amylovora in pear orchards in two regions of Türkiye, Amasya and Antalya. In this experiment, a suspension of P. agglomerans RK-84 at a density of 105 CFU/mL was sprayed on trees at three time points: at the onset of flower blossom, two weeks later, and ten days following the second application. As a positive control, Bacillus subtilis QST 713 was applied at a concentration of 107 CFU/mL (Serenade® ASO, Bayer CropScience). Results indicated that P. agglomerans RK-84, at a concentration of 105 CFU/mL, reduced disease incidence with an efficacy of 86.04% in Amasya and 84.28% in Antalya, showing no significant difference from the positive control, which achieved efficacy rates of 86.68% in Amasya and 84.89% in Antalya.