4 Contents 



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A new bacterial disease of the bean, found in New York and New Jersey (caused by 



Phytomonas vignae var. Icguminophila) 51 



Inoculation experiments 52 



On the bean 52 



Cross inoculations 54 



Etiology 55 



Morphology 55 



Cultural characteristics 55 



Nomenclature 58 



Brief description '. 99 



A hitherto unreported bacterial disease of the bean, from Europe (caused by Phytomonas 



iriridiflava) 59 



Inoculation experiments 60 



On the bean 60 



Cross inoculations 63 



Etiology 63 



Morphology 63 



Cultural characteristics 64 



Nomenclature 66 



Brief description 66 



Another strain of Phytomonas viridifiava 67 



Differentiation of the bacterial diseases of the bean 69 



Symptom basis 70 



Etiological basis 74 



Differences in loss of virulence of the pathogene in pure culture 76 



Host range 77 



Differentiation of the bacterial diseases from other bean diseases not of bacterial origin . . 78 



Geographical distribution of the various bacterial diseases of the bean 80 



Control methods 81 



Summary 83 



References 84 



