What are the four major groups of pests?

The four major groups of pests identified in option B—weeds, insects, vertebrates, and pathogens—encompass a broad range of species that can negatively impact agriculture, human health, and the environment.

Weeds are unwanted plants that compete with cultivated crops for resources, hindering agricultural productivity. Insects, which can include pests like aphids and beetles, may damage crops directly or act as vectors for diseases. Vertebrates encompass a variety of animals, including mammals and birds, that can also harm crops and carry diseases. Lastly, pathogens like bacteria and fungi can cause diseases in plants, animals, and humans, making them significant pests in various settings.

This categorization is essential in pest control and management strategies, as it allows for targeted and effective responses to specific types of pest-related issues. Understanding these groups aids pest control professionals in identifying the nature of the pest threat and applying appropriate measures to mitigate their impact effectively.