Basrah Journal of Veterinary Research,Vol.15, No.3,2016 Proceeding of 5 th International Scientific Conference,College of Veterinary Medicine University of Basrah,Iraq 333 USING OF AQUATIC EXTRACTS OF SALVIA OFFICINALIS TO CONTROL THE SNAIL BULINUS TRUNCATUS THE INTERMEDIATE HOST OF SCHISTOSOMIASIS IN IRAQ (PART I) Mohammed J.L. Al-Obaidi, Ali H. Abbas, Ahmad Yousif Hanoon, and Khowla Ibrahim Tropical. Boilogical Research Unit,Collage of Science,University of Baghdad,Baghdad,Iraq Key words: Salvia officinalis, Schistosomiasis, LD50 ABSTRACT Samples of the snails were collected from site in Al-Rasheed distract (30 km) southern of Baghdad. Isolation, identification and acclimatization to laboratory circumstances made within the laboratory. Several toxic parameters as NOEL, Threshold, different values of ED and LD were determined in this study. The ED50 of S. officinalis and Copper sulfates to B. truncatus were (8.8 and0.04g/L) respectively. The LD50 of S. officinalis and Copper sulfates to B. truncatus were (20 and 2.2 g/L) respectively.The study showed that the extracts of S. officinalis were less effective than CuSO4. The results improved that the toxicity of extracts was dose and time dependent. The present work concluded to ability to use the target extracts in control of snails the middle host of urinary Schistosomiasis. Schistosomiasis (Bilharziasis) may be a major public pathological state within the world. It affects 240 million people worldwide. Millions of people are suffering from severe morbid because of Schistosomiasis.The type parasitic worm Schistosoma haematobium is the causing of urogenital Schistosomiasis and the types S. guineensis, S. intercalatum, S. mansoni, S. japonicum, and S. mekongi are the causing of intestinal Schistosomiasis. Iraq is a one of countries suffering from urogenital Schistosomiasis. Baladruz is one of endemic distract of Diyala province with Bilharziasis. Al-Bzania River in Baladruz is considers as a foci of disease victor. According to statistics of health associations and many studies in the region, 18% of Baladruz populations affects with Schistosomiasis. Many causes were effected of distribution of Schistosomiasis in the region as authorities’ factors like using of river water as a wash place and swim especially with children whereas it specialized to palms irrigation [1-3].The life cycle of the disease is depending on factors such as presenting of Bulinus truncatus snail and contacting with water infested with