The answer to 'why is my irrigation system dead trees' is that a malfunctioning irrigation system can lead to dead or dying trees. Common causes include broken pipes, clogged sprinklers, incorrect watering schedules, and water pressure issues. Symptoms may include wilting leaves, sparse foliage, and dieback of branches.
To troubleshoot, start by checking for visible leaks or damage to the irrigation lines and sprinklers. Adjust the watering schedule to ensure trees are getting the right amount of moisture. If the system is old or complex, it's best to call in a professional landscaping technician to diagnose and repair the issue. Neglecting an irrigation problem can quickly lead to tree decline and even death.