Why is the definition of 'landscape' significant for pesticide certification?

The definition of 'landscape' is significant for pesticide certification because it dictates which pesticide products can be used and how they can be applied. Understanding what constitutes a landscape—whether it includes ornamental plants, trees, shrubs, turf, or other features—establishes the framework for appropriate pesticide selection and application techniques. Different landscapes may require specific treatments tailored to the unique plants and pests present, necessitating regulatory compliance. Misunderstanding the definition could lead to the misuse of products or techniques that are not suitable for a particular type of landscape, potentially harming plants, the environment, or human health. Thus, having a precise definition aids in ensuring safe and effective pest management practices within various landscape settings.