Gramoxone Injury on Peach
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Gramoxone (e.g. Paraquat) injury results in light tan leaf spots with a light to dark-brown border, which develop where the herbicide has made direct contact. Spots typically occur on lower leaves and are evident shortly after an application. Gramoxone is not translocated within leaves.
Gramoxone herbicide injury.
(Photo: John Strang, University of Kentucky)
Management:
- Avoid spray contact with peach leaves.
- Minimize spray drift (shielded sprayers, low pressure spray, apply on calm days).
