| 摘要 |
［Objectives］ The paper was to elucidate the symptoms, morphological characteristics, etiological factors, and current extent of damage associated with coffee root rot disease. ［Methods］ The symptoms, morphological characteristics, and etiological factors associated with coffee root rot disease were systematically observed, described, and analyzed. The assessment of damage was carried out using a specialized investigative methodology. ［Results］ The application of bottom fertilizer containing Fusarium incarnatum facilitated the pathogen’s entry through root wounds during transplantation, resulting in the development of water-soaked depression lesions in the affected areas. This infection significantly reduced the number of lateral roots in coffee plants, leading to symptoms such as wilting, withering, and ultimately, the death of the aboveground foliage. F. incarnatum exhibited three distinct types of spore morphology: macroconidia, which were sickle-shaped; mesoconidia, which were spindle-shaped; and microconidia, which were oval-shaped. The incidence rate of the disease in the affected region reached 100%, with a disease index exceeding 91, indicating severe damage. ［Conclusions］ This study serves as a valuable reference for the prevention and management of the emerging disease known as coffee root rot. |
