Figure 6. — Fusarium wilt, Fusarium oxysporum Schlechtf. 

 sp. medicaginis (Weimer) Snyd. & Hans. 



Figure 7. — Fusarium root and crown rot, Fusarium solani 

 (Mart.) Appel & Wr., F. roseum LK. 



Confined to wet soils 



Figure 8. — Lepto leaf spot, Leptosphaerulina briosiana (Poll.) 

 Graham & Luttrell. 



Figure 9. — Phytophthora root rot, Phytophthora megasperma 

 Drechs. f. sp. medicaginis. 



Root canker primarily in 

 Calif., Nev., Ariz., N. Mex. 



Figure 10. — Phymatotrichum root rot, Phymatotrichum 

 omnivorum (Shear) Dug. 



Figure 1 1 . — Rhizoctonia crown rot and root canker, 

 Rhizoctonia solani Kuehn . 



15 



