10.22376/ijpbs.2019.10.1.p1-12 Volume 4 Issue 2 2013 (April - June) Stem rot is important disease of paddy (Oryza sativa) causing significant reduction in yield. In this present study the pathogenic fungi was isolated from infected plant parts and lessThan i greaterThan in vitro lessThan /i greaterThan efficacy of different plant extracts viz., lessThan i greaterThan Nyctanthes arbor-tristis lessThan /i greaterThan , lessThan i greaterThan Strychnos nux-vomica lessThan /i greaterThan , lessThan i greaterThan Wrightia tinctoria lessThan /i greaterThan , lessThan i greaterThan Syzygium cumini lessThan /i greaterThan , lessThan i greaterThan Ocimum tenuiflorum lessThan /i greaterThan were tested to control stem rot pathogen. Different concentrations of plant extracts were used in the study. All the plant extracts showed significant reduction in the growth of pathogen lessThan i greaterThan . lessThan /i greaterThan Among the different extracts 2% of lessThan i greaterThan Nyctanthes arbor-tristis lessThan /i greaterThan lessThan i greaterThan was lessThan /i greaterThan found effective followed by lessThan i greaterThan Strychnos nux-vomica lessThan /i greaterThan , lessThan i greaterThan Wrightia tinctoria lessThan /i greaterThan , lessThan i greaterThan Ocimum tenuiflorum lessThan /i greaterThan lessThan i greaterThan and Syzygium cumini. lessThan /i greaterThan Application of plant extracts which are easily available for controlling plant diseases are cost effective and eco-friendly. Further investigations are in progress to test the efficacy of these extracts in field applications. N.VENKATESWARLU AND A.SREERAMULU Plant extract, pathogenic fungi, Oryza sativa, stem rot. 640-644