Which product has no soil residual and shows effects somewhat sooner than glyphosate?

• A. Finale
• B. Roundup
• C. Solitaire
• D. Diquat

Answer: (A)

In turf weed control, products that act by contact and don’t linger in the soil tend to show quick scorch or browning of the foliage, rather than needing to be absorbed and translocated through the plant. Glyphosate is a systemic herbicide—it moves within the plant to kill from the roots up—which means visible injury often takes longer to appear.

Finale is a contact herbicide used in turf that acts on the foliage you spray, causing rapid desiccation with little to no soil activity afterward. Because it doesn’t rely on translocation and doesn’t persist in the soil, its visible effects show up sooner than glyphosate. That combination—no soil residual and faster visible action than glyphosate—makes Finale the best fit for the described scenario.

Diquat can also act quickly and has little soil activity, but the option that best matches the specific description given is Finale.