识别与危害Identification & damage
叶片出现细白线，甚至成片灼枯，别立即当作缺肥。白条病也叫叶灼病，由细菌引起，白线只是重要线索。
Fine white lines or scorched leaves should not be assumed to mean deficiency. Leaf scald is bacterial; a white line is an important clue, not proof.
来源与传播Origins & spread
带菌种茎可把病带进新田，外观正常的材料也可能带菌。切割接触能帮助传播，因此要追查种源和机械作业。
Infected setts can introduce disease even when they look normal. Cutting can spread infection, so trace planting stock and machinery.
生活史与微观过程Life cycle & microscopic processes
细菌在木质部等组织中定殖，肉眼看不到这些细菌。右侧小图只说明所在部位，不能当成实际显微检测结果。有些感染长期隐蔽，也有蔗株迅速灼枯和死亡。水分胁迫可使症状更明显，但干旱本身不是病原。
Bacteria colonise xylem and other tissues; they are invisible to the naked eye. Infections may remain hidden, while other canes scorch and die rapidly. Water stress can intensify symptoms, but drought is not the pathogen.
田间检查与确认Inspection & confirmation
沿叶片观察细白线及其扩展，记录病株在田间的位置。再看茎部和整株长势，注意与其他条纹和损伤区分。按检测机构要求取样，用病原检测帮助确认，而非只凭照片。结果用于追溯种源，关联田块也要检查并停止传播风险。
Follow fine white lines and their spread, and map affected plants. Inspect stems and whole-plant growth, considering other streaks and injuries. Follow laboratory sampling instructions; confirm the pathogen beyond a photograph. Use results to trace planting stock and inspect connected fields.
预防、治理与复查Prevention, management & follow-up
采用适合当地的抗病品种和检测合格种苗，降低带病起点。刀具与收割设备先清洁再消毒，保持种苗圃的卫生隔离。确诊材料不要留种，更新或清除按当地植保方案执行。不能指望喷杀菌剂治好维管束里的感染，处置后继续复查。
Use locally suitable resistant varieties and tested planting stock. Clean and disinfect cutting equipment and protect nursery hygiene. Do not propagate confirmed infected cane; follow local removal or renewal advice. Do not expect a fungicide spray to cure vascular infection; keep monitoring.