Ronstar is not for use on home lawns and is particularly effective against which weed?

Ronstar is not for use on home lawns and is particularly effective against which weed?

• A. Goosegrass
• B. Crabgrass
• C. Nutsedge
• D. Dandelion

Answer: (A)

Ronstar acts as a preemergent herbicide, meaning it stays in the soil to form a barrier that prevents weed seeds from germinating and establishing. The product label restricts its use to commercial or non-home-lawn turf, so it isn’t applied to residential lawns. It’s particularly effective against goosegrass because goosegrass seeds germinate in the same window when Ronstar is still active in the soil, so new goosegrass seedlings are stopped before they can grow. The other weeds listed—dandelion (a broadleaf weed) and nutsedge (a sedge needing different chemistry)—aren’t the primary targets of this herbicide, and while crabgrass can be controlled by Ronstar, the stem of the question and labeling point to goosegrass as the standout matchup.

Ronstar acts as a preemergent herbicide, meaning it stays in the soil to form a barrier that prevents weed seeds from germinating and establishing. The product label restricts its use to commercial or non-home-lawn turf, so it isn’t applied to residential lawns. It’s particularly effective against goosegrass because goosegrass seeds germinate in the same window when Ronstar is still active in the soil, so new goosegrass seedlings are stopped before they can grow. The other weeds listed—dandelion (a broadleaf weed) and nutsedge (a sedge needing different chemistry)—aren’t the primary targets of this herbicide, and while crabgrass can be controlled by Ronstar, the stem of the question and labeling point to goosegrass as the standout matchup.