closeup view of plum tree branch affected by silver leaf disease a detailed look at the impact of

yield visual view variations trees tree telltale symptoms symptom subtle silverygray silvery silver signs showing showcases science reduced ranging productivity production problems prevention premature practices plum plant pest pathology pathogen orchard notice measures management macro look light leaves leaf infection impacts impact identification hue horticulture health gardening fungicide fungal fruit forestry drop distinctive disease discoloration diagnostics diagnosis detailed damage control coloration