Which group of pests includes undesirable plants?

The group of pests that includes undesirable plants is weeds. Weeds are defined as plants that are considered undesirable in a particular setting, often because they compete with cultivated plants for resources such as nutrients, light, and water. This competition can hinder agricultural productivity and crop quality.

Weeds can thrive in a variety of environments and may spread rapidly, making them a significant challenge for farmers and gardeners. They can also harbor pests and diseases that can further threaten crops. The identification and management of weeds are critical components of effective pest control and integrated pest management systems.

While invertebrates, vertebrates, and pathogens may also pose threats to crops and gardens, they do not represent undesirable plants. Invertebrates and vertebrates refer to animal pests, whereas pathogens refer to organisms that cause disease, such as fungi, bacteria, and viruses. Thus, weeds are the only option that represents undesirable plants directly.