A method for detecting a breach in an irrigation line (32) of an irrigation system (10) includes comparing a fluid condition at a first point along the irrigation line (32) with the fluid condition at a second point located at an irrigation unit (20) to determine whether a disparity of at least a predetermined percentage in the fluid conditions exists. The fluid condition can include a measurement of irrigation fluid pressure, quantity of irrigation fluid (19), rate of flow of the irrigation fluid (19), voltage and/or electrical current through the irrigation fluid (19). The method can include selectively monitoring the fluid condition at the irrigation unit (20) over time using a main control system (22). In another embodiment, the method includes comparing the fluid condition at the first point along the irrigation line (32) with the fluid condition at each of a plurality of second points. In still another embodiment, the method includes the main control system (22) selectively activating one or more of the irrigation units (20) so that irrigation fluid (19) flows to or through one or more of the irrigation units (20) to measure the fluid condition.