Which term best describes the area of tissue on a plant that has become diseased, dying, or dead?

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Multiple Choice

Which term best describes the area of tissue on a plant that has become diseased, dying, or dead?

Explanation:
The area described is a lesion. A lesion is a localized patch of plant tissue that has become diseased, dying, or dead, and it’s the damaged tissue itself you can observe on leaves, stems, or roots. This differs from signs, which are actual evidence of the pathogen itself (like fungal structures), and from inoculum, which is the pathogen material capable of causing infection. An insect is not a term for diseased tissue. So the patch of damage fits the term lesion.

The area described is a lesion. A lesion is a localized patch of plant tissue that has become diseased, dying, or dead, and it’s the damaged tissue itself you can observe on leaves, stems, or roots. This differs from signs, which are actual evidence of the pathogen itself (like fungal structures), and from inoculum, which is the pathogen material capable of causing infection. An insect is not a term for diseased tissue. So the patch of damage fits the term lesion.

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