Mucellaneous Publication 541, U. S. Dcpt. of Agriculture 



PLATE 9 



A and B, Downy mildew of spinach: A, Upper surface of leaf: B, lower surface 

 of leaf showing mycelium and spores on old spots. C and D, Bacterial soft 

 rot of spinach. Note characteristic discolorations in medium (C) and advanced 

 (D) stages. 



