Devrinol (napropamide) is labeled for use on which grasses?

Devrinol (napropamide) is labeled for use on which grasses?

• A. For use on tall fescue and bermudagrass only.
• B. For use on bentgrass greens only.
• C. For use on all grasses.
• D. For use on warm-season grasses only.

Answer: (A)

Napropamide’s use is governed strictly by its label, which specifies exactly which grasses it can be safely used on. The label for Devrinol lists tall fescue and bermudagrass as the grasses it is registered for, meaning those are the only turf types on which it’s approved when following label directions. Bentgrass greens aren’t listed on the label, so using it there would be off-label and could harm the grass. It isn’t labeled for all grasses, and the inclusion of tall fescue (cool-season) alongside bermudagrass (warm-season) shows it’s not restricted to just warm-season grasses. So the correct understanding is that napropamide is labeled for use on tall fescue and bermudagrass only. Always check the label for the exact registered grasses, rates, and timing.

Napropamide’s use is governed strictly by its label, which specifies exactly which grasses it can be safely used on. The label for Devrinol lists tall fescue and bermudagrass as the grasses it is registered for, meaning those are the only turf types on which it’s approved when following label directions. Bentgrass greens aren’t listed on the label, so using it there would be off-label and could harm the grass. It isn’t labeled for all grasses, and the inclusion of tall fescue (cool-season) alongside bermudagrass (warm-season) shows it’s not restricted to just warm-season grasses. So the correct understanding is that napropamide is labeled for use on tall fescue and bermudagrass only. Always check the label for the exact registered grasses, rates, and timing.