marginal blight

例句：

1. 1. The plantation was suffering from a marginal blight that had been plaguing it for years.
   这个种植园正遭受一种持续多年的边际病害的困扰。
2. 2. The research team discovered the root cause of the marginal blight and developed an effective treatment.
   研究小组发现了边际病害的原因，并开发了一种有效的治疗方案。
3. 3. The farmers were worried about the potential impact of the marginal blight on their crops.
   农民们担心边际病害可能对他们的庄稼造成潜在影响。