Foliar diseases appear on which part of the plant?

Foliar diseases appear on which part of the plant?

• A. Roots
• B. Stems
• C. Leaves
• D. Flowers

Answer: (C)

Foliar means related to the leaves, the plant’s foliage. So foliar diseases are those that infect and show symptoms on leaf tissue. You’ll typically see signs such as spots, blotches, discoloration, or coatings (like powdery mildew) on the leaves, and symptoms may include yellowing or premature leaf drop. This is different from diseases that affect other parts of the plant—roots affect the root system, stems affect the stems, and flowers affect the blossoms. So foliar diseases appear on leaves.

Foliar means related to the leaves, the plant’s foliage. So foliar diseases are those that infect and show symptoms on leaf tissue. You’ll typically see signs such as spots, blotches, discoloration, or coatings (like powdery mildew) on the leaves, and symptoms may include yellowing or premature leaf drop. This is different from diseases that affect other parts of the plant—roots affect the root system, stems affect the stems, and flowers affect the blossoms. So foliar diseases appear on leaves.