The Philippine Phytopathological Society, Inc. (PPS) is a non-profit organization established by a group of Plant Pathologists at the University of the Philippines Los Baños, College of Agriculture on May 11, 1963. The Society aims to (1) encourage and promote the development of knowledge of disease management scientifically, (2) develop integrated pest and disease management based on sound and ecological precepts, (3) encourage the interchange of information, knowledge, and ideas among members, farmers, and other interested individuals, and (4) develop an effective working relation between persons professionally engaged in plant pathology and coordinate various interests and services germane to the Society. 

PPS is one of the seven organizations under the umbrella of the Pest Management Council of the Philippines, Inc. (PMCP).  The members of the Society are composed of individuals or organizations involved or interested in the science of plant pathology. PPS is also represented by regional divisions: