Comparative Assessment of Various Antibiotics for Controlling Bacterial Blight in Eucalyptus camaldulensis

Maria Khan, Irfan Ahmad, Muhammad Atiq, Muhammad Asif, Muhammad Haroon U Rashid, Salman Ahmad, Hafiz M. Furqan Shaheen, Wasi -ud-Din, Zoha Adil

Abstract


Eucalyptus camaldulensis is a significant tree species found in tropical, subtropical, and temperate regions worldwide. It belongs to the family Myrtaceae and is native to Australia. While numerous diseases affect Eucalyptus production, bacterial blight stands out as one of the most serious diseases, causing severe damage during the nursery stage. There is a strong link between environmental factors and disease incidence. After collecting diseased samples from the field, various experiments were conducted in the research area of the Department of Forestry and Range Management at the University of Agriculture, Faisalabad. The primary objective of this study was to evaluate different concentrations of antibiotics for managing bacterial blight disease through antibiotic treatments. Following isolation, identification, and pathogenicity tests, antibiotics such as Amikacin Sulphate, Cefuroxime, Ceftizoxime Sodium, Co-amoxiclav, Ceftriaxone, Cephradine, Ampicillin Sodium, Ampicillin/Cloxacillin, and Ceftazidime, along with a control treatment, were assessed at concentrations of 300 ppm, 500 ppm, and 700 ppm under in vitro, greenhouse, and in vivo conditions. Among these, Ceftriaxone exhibited the best performance, forming the maximum inhibition zone (12.657 mm) at concentrations of 300 ppm, 500 ppm, and 700 ppm in the in vivo experiment, compared to the aforementioned treatments. Meanwhile, the lowest disease incidence (%) was recorded in the greenhouse (15.185%) and in vivo (18.519%) experiments at concentrations of 300 ppm, 500 ppm, and 700 ppm, using the combination of Cephradine + Ceftriaxone. The study underscores the effectiveness of Ceftriaxone and the Cephradine + Ceftriaxone combination as promising antibiotic treatments for managing this disease.


Keywords


antibiotics; bacterial blight; Eucalyptus camaldulensis

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References


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DOI (PDF): https://doi.org/10.33804/pp.007.02.4747

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