Systemic fungicides usually move ________.

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Multiple Choice

Systemic fungicides usually move ________.

Explanation:
Systemic fungicides are absorbed and travel inside the plant through its vascular system, moving with the transpiration stream in the xylem. This causes the chemical to move upward from the roots toward growing tissues, including the tops of the plant and leaf tips, where new growth is most susceptible to infection. In short, their typical pattern is acropetal movement—upward toward the plant’s aerial parts. They’re not confined to one spot on the surface, nor primarily driven downward to the roots or just laterally within a leaf.

Systemic fungicides are absorbed and travel inside the plant through its vascular system, moving with the transpiration stream in the xylem. This causes the chemical to move upward from the roots toward growing tissues, including the tops of the plant and leaf tips, where new growth is most susceptible to infection. In short, their typical pattern is acropetal movement—upward toward the plant’s aerial parts. They’re not confined to one spot on the surface, nor primarily driven downward to the roots or just laterally within a leaf.

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