tree health library
One stop symptom checker and database of common issues
Citrus Chlorosis - Manganese & Zinc Deficiency
Yellow tissue between green veins on citrus leaves usually points to a micronutrient problem. Here is how to tell manganese and zinc deficiency apart and fix it.
Citrus Leaf Yellowing - Nitrogen Deficiency & Root Stress
When citrus leaves turn evenly pale, the cause is often nitrogen or roots, not disease. Learn how to check and correct it.
Leaf Tip Burn - Salt Buildup & Drip Water Stress
Brown, crispy leaf tips are one of the most common desert landscape problems. Most cases come down to salt and how the drip system waters.
Exposed Surface Roots - Shallow Watering
Big roots across the yard surface are usually a watering pattern problem, not a bad tree. Here is how deep watering helps.