Which term describes alterations of turf grass as a result of disease?

Which term describes alterations of turf grass as a result of disease?

• A. Sign
• B. Symptom
• C. Injury
• D. Change

Answer: (B)

When turf grass is affected by a disease, the visible changes in the plant are symptoms. These are the plant’s responses to the pathogen, such as yellowing or chlorosis, brown or necrotic spots, thinning turf, or stunted growth. These changes describe how the plant looks or performs because of the disease, not the pathogen itself. A sign would be the pathogen itself present on or in the plant, like fungal fruiting bodies or spores. Injury is the damage caused, but the specific term used for the plant’s observable changes due to disease is symptoms. Change is too vague to capture the plant’s disease-related alterations.

When turf grass is affected by a disease, the visible changes in the plant are symptoms. These are the plant’s responses to the pathogen, such as yellowing or chlorosis, brown or necrotic spots, thinning turf, or stunted growth. These changes describe how the plant looks or performs because of the disease, not the pathogen itself. A sign would be the pathogen itself present on or in the plant, like fungal fruiting bodies or spores. Injury is the damage caused, but the specific term used for the plant’s observable changes due to disease is symptoms. Change is too vague to capture the plant’s disease-related alterations.