Calimpang, Ison A.Masanit, Jay Ron A.2026-07-162026-07-162021Calimpang, I. A., Masanit, J. R. A. (2021). Introduction to Weed Science (CAMC 108). [Instructional Materials, Don Mariano Marcos Memorial State University - North La Union Campus, Sapilang, Bacnotan, La Union]. Lakasa ti Sirib, DMMMSU Institutional Repository.https://lakasa.dmmmsu.edu.ph/handle/123456789/2196Module 1 The Beginnings of Weeds -- Weed Definitions -- Weed Characteristics -- Harmful effect of Weeds -- Module 2 Weed Classifications -- Introduction/Phylogenetic Relationships -- Naming Plant's Scientific Names -- Methods of Classification -- Module 3 Ethnobotany of Weeds -- Food for human -- Feed for animals -- Medical uses -- Agricultural uses -- Ornamental uses -- Insect or disease traps -- Pollution Control -- Other uses -- Module 4 Weed Reproduction, Dispersal and Establishment -- Weed Reproduction and Dispersal -- Weed Establishment -- Module 5 Weed Ecology -- Human influences on weed ecology -- The weed-crop ecosystem -- Environmental interactions -- Fundamental ecological concepts -- Plant competition -- Plant characteristics and competitiveness -- Module 6 Invasive Plant Species -- The definition of invasive species -- The identity of invasive plant species -- Why do invasions occur? -- The consequences of plant invasions -- Management of invasive plant speciesen-USInstructional Material