Which disease symptom is a general or rapid browning and death of foliage?

Which disease symptom is a general or rapid browning and death of foliage?

• A. Root Knot
• B. Die Back
• C. Canker
• D. Blight

Answer: (D)

Blight describes diseases that cause sudden, widespread tissue death, especially in the leaves. The symptom of general or rapid browning and death of foliage is a hallmark of blight, because the pathogen drives quick, extensive damage to above-ground plant parts, often leading to rapid decline of the whole plant. Other conditions describe different patterns: root knot affects roots with galls and stunted growth rather than quick leaf death; dieback is a gradual loss starting at tips or outer growth; canker is a localized, sunken area on stems or branches. So blight best fits the described symptom since it emphasizes rapid, widespread browning and death of foliage. Examples include tomato early blight or potato late blight, where leaves brown and die quickly.

Blight describes diseases that cause sudden, widespread tissue death, especially in the leaves. The symptom of general or rapid browning and death of foliage is a hallmark of blight, because the pathogen drives quick, extensive damage to above-ground plant parts, often leading to rapid decline of the whole plant. Other conditions describe different patterns: root knot affects roots with galls and stunted growth rather than quick leaf death; dieback is a gradual loss starting at tips or outer growth; canker is a localized, sunken area on stems or branches. So blight best fits the described symptom since it emphasizes rapid, widespread browning and death of foliage. Examples include tomato early blight or potato late blight, where leaves brown and die quickly.