The answer to 'irrigation system dead trees' is that a malfunctioning irrigation system is a common cause of dead trees in landscaping. Symptoms can include wilting, browning leaves, and stunted growth. The most common solutions are to inspect and repair the irrigation system, adjust watering schedules, and potentially replace any damaged or diseased trees.
Troubleshooting an irrigation system requires specialized knowledge, so it's generally best to call a professional landscaper or irrigation technician unless you have extensive experience. They can diagnose the issue, make necessary repairs, and ensure the system is properly maintaining your trees and other plants.