The book is a compilation of information which embodies a fairly competitive treatment of objective questions of Crop Protection for Agriculture Research Service (ARS) exam. The book consists of objective type question on Entomology, Plant Pathology, and Nematology dealing with both the basic and applied aspects enriched with recent advances. .The book also contains list of important Indian and Foreign books along with their authors, and research journals related to Entomology, Plant Pathology and Nematology along with their sources.