Which of the following is NOT a component of sustainable landscape design?

The choice of excessive use of synthetic fertilizers is not a component of sustainable landscape design because sustainable landscape practices aim to minimize environmental impact and promote ecological balance. Synthetic fertilizers can lead to nutrient runoff, which harms water quality, and can negatively affect soil health over time by disrupting natural microbial processes.

In contrast, components such as low-water-use plants, native plant selection, and natural pest management techniques are essential to sustainable landscape design. Low-water-use plants help conserve water resources, which is particularly important in regions prone to drought. Native plant selection encourages biodiversity and supports local wildlife, as these plants are adapted to the local climate and soil conditions. Furthermore, natural pest management techniques promote healthier ecosystems by relying on biological controls and minimizing chemical interventions, thereby reducing potential harm to beneficial organisms.

In summary, the emphasis of sustainable landscape design is on practices that enhance environmental health, making excessive use of synthetic fertilizers incompatible with its principles.