The objectives of this course is to give the students an idea about seed-borne diseases, their causal agents, including fungi, bacteria, viruses, and nematodes, their mode of transmission, economic importance, the effect on seed viability, seed anatomy in relation to pathogens transmission, the effect of environmental factors on pathogens transmission, seed healthy tests, production of disease free seedlings, the recent techniques for the detection of these diseases in the seeds, and control methods.