What is a primary benefit of integrating pest-resistant plants in landscape design?

Integrating pest-resistant plants in landscape design offers a significant advantage in minimizing pesticide use. These plants are inherently more capable of warding off pests and diseases, which reduces reliance on chemical interventions to manage pest populations. By selecting these plants, landscapers can create ecosystems that naturally resist pest pressures, thus promoting a healthier environment with fewer applied chemicals.

This approach not only benefits the individual plants by reducing exposure to potentially harmful pesticides but also contributes to the overall ecological balance of the landscape. Healthier plants can thrive with less chemical input, leading to improved plant vigor and a more sustainable landscape management practice.

The other options reflect benefits that might be associated with different practices or are secondary effects rather than primary benefits of incorporating pest-resistant plants. For instance, while enhanced biodiversity is valuable, it is more a result of diverse planting strategies rather than the direct integration of pest resistance. Similarly, increased chemical application contradicts the intended benefit of using pest-resistant plants, and while longer plant lifespans can be a positive outcome, they are not the primary reason for selecting pest-resistant varieties.