Which of the following fungicides is a non-systemic fungicide?

-✅Explanation: Dithane M45, also known by its active ingredient Mancozeb, is a non-systemic fungicide. Non-systemic fungicides remain on the plant surface and act by direct contact, preventing fungal spores from germinating or infecting the plant.

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📌Other Options Explanations:

• Vitavax (Carboxin):
-Type: Systemic fungicide.
-Mode of action: Absorbed by the plant and used to control seed and soil-borne diseases like smuts and bunts in cereals.

• Ridomil MZ-72 (Metalaxyl + Mancozeb):
-Type: Combination of systemic (Metalaxyl) and non-systemic (Mancozeb) fungicides.
-Mode of action: Systemic component provides curative action, while the non-systemic component prevents infection.

• Plantvax (Oxycarboxin):
-Type: Systemic fungicide.
-Mode of action: Controls rusts and other fungal diseases by penetrating plant tissues.