White Spots on Apricot Leaves: Water or Nutrient Issue?

An apricot tree shows white spots along leaf veins radiating from the midrib, spreading across the leaf underside. The tree is 15–20 feet tall in moderate sunlight.

Possible Causes

Drawing from citrus experience, the expert suggests two primary possibilities:

• Overwatering: White lines along the midrib can indicate excessive moisture.
• Minor Nutrient Deficiency: A quick test is applying Epsom salts (magnesium sulfate) to see if foliage greens up.

Next Steps

Check soil drainage and reduce watering if soggy. If drainage is adequate, try a soil drench of Epsom salts (1–2 tablespoons per gallon) to address potential magnesium deficiency. Monitor for improvement over 2–3 weeks.

Expert insight provided by Kathy.