Weed Science is the study of weeds, which are unwanted plants at a particular place and time, and their management. Weed is an integral part of pest complex that reduces the quality and quantity of crops produced. Studying weeds is important in developing effective and integrated weed management strategies to increase crop productivity.
Entomology provides various activities leading to a better understanding of Philippine insects and related arthropods; the development of effective pest management systems that support national agricultural production programs; training of Filipino and foreign students in the entomological profession; the development of industries based on beneficial insects
Plant Pathology provides in-depth knowledge on plant diseases and their causative agents, and their strategies for disease management. It is geared toward attaining food and feed security and safety, and shaping up globally-competitive plant pathologists.