Which fungicide type is absorbed by and moves inside the plant?

The systemic fungicide is designed to be absorbed by the plant and translocated throughout its tissues. This means that once applied, the fungicide enters the plant system and provides internal protection against fungal pathogens. This internal movement allows it to protect not only the areas directly sprayed but also parts of the plant that may not be exposed to the fungicide, effectively preventing or controlling diseases more comprehensively.

In contrast, contact fungicides work by forming a protective barrier on the plant surface and do not penetrate the plant tissues. Preventive fungicides are designed to be applied before infection occurs, but their action is typically external, focusing on prevention at the surface level rather than internal movement. Fumigants are gases used to control pests in the soil or in enclosed spaces and do not function by being absorbed into the plant. Therefore, the systemic fungicide stands out as the option that effectively moves inside the plant and plays a critical role in contributing to its defense against fungal diseases.