James, R R <br/><br/>
Health status of alfalfa leafcutting bee larvae (Hymenoptera: Megachilidae) in United States alfalfa seed fields.  [electronic resource] 

 -  Environmental entomology  Dec 2013 
 - 1166-73 p.  digital 
<br/><br/> Publication Type: Comparative Study; Journal Article 
<br/><br/><label>ISSN: </label>1938-2936 
<br/><br/><label>Standard No.: </label>10.1603/EN13041  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Animals<br/>Beekeeping<br/>Bees--physiology<br/>Female<br/>Larva--physiology<br/>Male<br/>Medicago sativa<br/>Population Dynamics