Why can vertebrate feeding be beneficial to turf?

• A. They aerate the soil.
• B. They fertilize turf with waste.
• C. They feed on insects that might damage turf.
• D. They deter pests by predation.

Answer: (C)

Vertebrates help turf mainly through natural pest control: they eat insects that damage turf, which directly reduces pest populations and the feeding injury they cause. When birds, small mammals, and other predators forage in the turf and consume grub larvae, caterpillars, and similar pests, they lessen the level of damage the grass experiences and can lower the need for chemical controls. This direct feeding on pests is the mechanism by which vertebrate feeding benefits turf.

Other options describe effects that aren’t about feeding on pests. Aeration from digging animals can happen, but that’s not the feeding benefit. Waste from animals can contribute nutrients, not the primary reason vertebrates are helpful here. Predation does deter pests, but the clearest, most direct benefit comes from actually feeding on the insects that harm the turf, which is why this choice is the best.