What term describes abnormal conditions in plants indicative of disease or disorder?

The term "plant symptoms" accurately describes the visible or measurable indicators that suggest a plant is experiencing abnormal conditions, often due to disease or disorder. Symptoms can manifest in various ways, such as changes in color, wilting, stunted growth, or unusual spots on leaves. These symptoms serve as critical signs for diagnosing the underlying issues affecting the plant's health.

In contrast, the other terms do not capture the specific meaning of observable conditions related to plant health as effectively. "Plant ailments" generally refers to various types of illnesses affecting plants but is broader and less specific in representing the observable signs. "Plant anomalies" typically refers to irregularities or deviations from the norm without the direct implication of disease. Similarly, "plant maladies" indicates ailments but is often used in a more general or literary context rather than specifically focusing on the symptoms observed in the plant. Thus, "plant symptoms" best fits the definition of the term in the context of diagnosing plant health issues.