Which product delivers a quick initial knockdown but requires repeat applications for continued control?

Which product delivers a quick initial knockdown but requires repeat applications for continued control?

• A. Solitaire
• B. Monument
• C. SedgeHammer
• D. Diquat

Answer: (A)

The concept being tested is rapid weed kill with little to no lasting soil or plant-systemic activity. A product that delivers a quick initial knockdown will make existing weeds disappear or yellow quickly, but because it doesn’t move through the plant or persist in the soil, new weeds can emerge and must be treated again to keep control. Solitaire fits this pattern: it acts quickly to kill or severely injure the target weeds, giving fast visible results, but it has minimal residual effect, so repeated applications are needed to maintain control over time. The other products don’t align as cleanly with that pattern. Some have longer-lasting or systemic effects, offering ongoing control after one application, while others are more specialized in weed type and don’t provide the same rapid, broad knockdown followed by repeat treatments.

The concept being tested is rapid weed kill with little to no lasting soil or plant-systemic activity. A product that delivers a quick initial knockdown will make existing weeds disappear or yellow quickly, but because it doesn’t move through the plant or persist in the soil, new weeds can emerge and must be treated again to keep control.

Solitaire fits this pattern: it acts quickly to kill or severely injure the target weeds, giving fast visible results, but it has minimal residual effect, so repeated applications are needed to maintain control over time.

The other products don’t align as cleanly with that pattern. Some have longer-lasting or systemic effects, offering ongoing control after one application, while others are more specialized in weed type and don’t provide the same rapid, broad knockdown followed by repeat treatments.