葉斑病是一種由真菌細菌病毒引起的植物疾病,由線蟲昆蟲、環境以及除草劑引起的葉片病變也被稱為葉斑病。葉片中會出現與本體顏色不同的斑點[1]。當植物處於長時間的潮濕和濕潤的環境時會更有可能罹患葉斑病,葉斑病的病原體會通過風、雨水飛濺或灌溉傳播到其他葉片上。[2]

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