Monitoring systems for center pivot irrigation systems and methods of irrigating an agricultural crop using the irrigation systems are provided. The irrigation systems may comprise a plurality of in-canopy sprinklers. The monitoring systems are configured to detect an operational condition of the plurality of in-canopy sprinklers, including whether individual sprinkler heads have become detached from the irrigation system main line, or whether an individual sprinkler head has become clogged, and alert an operator with a time and/or location of the occurrence of an event associated with one or more of the sprinklers.