Born on 1stJuly 1965 at Basni Budha,Bhopalgarh, Jodhpur, Rajasthan, Dr. S.D.Ratnoo was obtained his B.Sc. Ag. (Honours) (1987) from Sukhadia University, Udaipur and M.Sc.(Ag) Entomology (1991) from Rajasthan Agricultural University, Bikaner; Ph.D Entomology (1995) from SKRAU, Bikaner. Dr. Ratnoo served as Assistant Professor& Chief Scientist cum Head (1996-2004) at KVK Jaisalmer; Associate Professor (2004-06) at KVK, Kumher and Zonal Director Research from May, 2006 to till date at ARS, Jalore & University HOD-Entomology from 2014 to till date.He joined Dean& Faculty Chairman, Collage of Agriculture, Sumerpur in June, 2017 to till date. He has published 79 research papers, 11 review papers, 34 technical bulletin/training/practical manuals, 04 book chapters, 30 recommendations included in POPs and 95 popular articles at national and international repute. Dr. Ratnoo is Master trainer of Entomology in Zone IIb.I presented 10 papers in symposia/seminars/conferences. He is having life membership of 05 professional societies. Prof. Ratnoo presently serving as Dean, College of Agriculture, Sumerpur; faculty Chairman, AU, Jodhpur; ZDR, ARS, Jalore and Officer Incharge of ARSS Sumerpur.