What kind of herbicide should be used to try to take out all types of broadleaved weeds growing in a stand of turfgrass?

• A. Selective
• B. Non-selective
• C. Preemergence
• D. Postemergence

Answer: (A)

In turfgrass management, you want to remove broadleaf weeds without harming the grass itself. That requires a selective herbicide—one that targets broadleaf plants but is safe for turfgrasses. Non-selective products would kill everything, including the turf. Preemergence works on seeds before they sprout, so it won’t address weeds that are already growing in the stand. Postemergence can kill emerged weeds, but you still need the product to be selective for broadleaf weeds so the turfgrass isn’t damaged. So, the best fit is a selective herbicide, designed to control broadleaf weeds in a turf stand while sparing the grass.