Photo Source: https://www.keyplex.com/knowledge-base/broccoli-research/systemic-acquired-resistance-plants-secret-weapon/ All plants have natural disease defense abilities.  The ability of your plants to defend themselves against disease or host, is regulated by several protective chemical defense pathways. To become effective, these natural defense pathways need to be signalled or turned on (elicited).  Naturally, the signalling of these pathways occurs only by infection...Read More