Oak Leaf Yellow Veins: Nutrient Deficiency, Fertilize with Micronutrients

3-year-old black oak: leaf veins bright yellow, more visible. Not herbicide. Normal or problem?

Not Normal: Nutrient Deficiency

Yellow veins + green tissue = reverse chlorosis. Multiple micronutrients likely low.

Fix

• Tree fertilizer with micronutrients (B, Mn, Fe, Zn, etc.)
• May need N too
• Don't overfertilize (toxicity risk)