A.G. Sreenivasa <br/><br/>
Biological methods of managing bollworm, Helicoverpa armigera (Hubner) On cotton 

 - Ph.D (Agri) 
 - Dharwad  University of Agricultural Scineces, Dharwad  1996 
 - 294p 
<br/><br/><br/>ENGLISH 
<br/><br/><label>Dewey Class. No.: </label>630  / SRE