Arizona Agricultukai, Kxi-ivKiAiiixT Station 



421 



pci.iU well Ijeidw ail}- margin of profit. xVccording to advices from 

 tne office of the State Entomologist this blight is due to Psciuio- 

 motuis phascoli and the infection is carried in soil and by means cjf 

 diseased seed. It is i)rc)bable that this trouble is identical with a 

 similar disease which appeared on the same land al:)out three sea- 

 sons ago, and if this supposition is correct its seriousness is mani- 

 fested by the fact that the bacteria remained virulent in the soil for 

 a period of three years, during wdiich time no host plant specific for 

 the germs has been grown. The following varieties of beans were 

 used: Tepary, Lady Washington, Bates, Colorado Pinto and Hopi 

 Lima, and the table given below includes the yields from each 

 variety. The outlook for a remarkable yield of beans was verv 

 favorable before the blight appeared. 



TAiiLK II. — ^■I^;LDS of hf.axs on prf.scott dry farm, 1917. 



SORGHUMS • 



Five sorghums were tried ; namely. Dwarf White milo, feterita, 

 darso, African Kafir, and Chib-to]) sorghum. It was necessary 

 to purchase seed for the latter on the open market, and unfortu- 

 nately a hybridized mixture which in the current generation showed 

 almost everv t\-]ie of sorghum but Club-to]-) was secured. Yields 

 of these si>r"hunis are shown in Table TIL 



