Clomazone Injury on Cucurbit Crops
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Clomazone (Command 3ME) injury. Used to control annual grasses and small-seeded broadleaf weeds, this herbicide is a chlorophyll/carotenoid pigment inhibitor. Affected leaves appear bleached, sometimes with a tinge of pink/purple. New growth initially appears normal except for the lack of green and yellow pigments. Clomazone is labeled for preplant or pre-emergence application.
Clomazone injury to foliage.
(Photo: Timothy Coolong, University of Kentucky)
Management:
- Use according to the label
- Apply with a shielded sprayer if spraying row middles
