The presence of chlorotic lesions on the foliage of Malus domestica indicates a potential disruption in the tree’s photosynthetic capabilities. These discolored areas, typically manifested as lighter regions contrasting with the normal green pigmentation, can vary in size and distribution across the leaf surface. For instance, the affected areas may present as pinpoint-sized blemishes, diffuse mottling, or clearly delineated circular or irregular shapes.
Identifying the underlying cause of such foliar abnormalities is crucial for maintaining orchard health and maximizing fruit production. Chlorosis reduces the plant’s ability to convert sunlight into energy, impacting overall vigor, fruit set, and yield. Historically, observation of plant foliage has been a primary method for diagnosing nutrient deficiencies and disease outbreaks, leading to timely intervention strategies and minimized economic losses for growers.
