B.P. Ravikumar <br/><br/>
Studies on powdery mildew of rose (Rosa Spp.0 Caused by Sphaerotheca pannosa Var. rosae (Wallr.) Lev. 

 - M.Sc (Agri) 
 - Dharwad  University of Agricultural Scineces, Dharwad  1998 
 - 87p 
<br/><br/><br/>ENGLISH 
<br/><br/><label>Dewey Class. No.: </label>630  / RAV