Solution: Use drip irrigation, soaker hoses, or careful hand watering directed at the soil level.
Explanation: Wet foliage creates an ideal environment for many fungal and bacterial diseases to develop and spread. Watering the soil directly keeps leaves dry. Water early in the day so any splashed foliage can dry quickly in the sun.
Notes: Helps prevent foliar diseases like blights and powdery mildew.

Water Soil, Not Leaves