Induced systemic resistance (ISR)

Induced systemic resistance (ISR) is a natural defense mechanism in plants where beneficial microbes stimulate the plant’s immune system, enhancing its ability to fight off future pests and diseases. When these friendly microbes interact with a plant, they activate internal responses that prepare the plant to respond more quickly and effectively to threats, similar to an immune boost. This process helps plants stay healthier and reduces the need for chemical pesticides. ISR is an important part of sustainable agriculture, promoting plant resilience using biological methods.