Which of the following is categorized as an ornamental issue?

Cutworms are categorized as an ornamental issue because they primarily affect ornamental plants, including flowers, shrubs, and other decorative vegetation. These caterpillar pests are notorious for their feeding habits, which involve cutting through the stems of young plants at or just above the soil line, resulting in significant damage or even death of the plants. For landscape professionals and gardeners, managing cutworm populations is crucial to maintaining the health and aesthetics of ornamental gardens.

The other choices encompass different categories: glyphosate is a broad-spectrum systemic herbicide commonly used to control weeds rather than pests, while azoxystrobin is a fungicide used for managing various plant diseases, and carbaryl is an insecticide that targets various pests but may not specifically align with the ornamental classification as much as cutworms do. Understanding these classifications helps in implementing appropriate pest management strategies in ornamental horticulture.