150 Mortier F. Barrus 



were susceptible to all strains, but none were found that were resistant 

 to all. Edgerton and Moreland (1916) inoculated twelve varieties of 

 P. vulgaris with cultures of the pathogene from eleven sources and obtained 

 somewhat similar results. The snap varieties generally were susceptible 

 to all cultures, while the Scarlet Runner and a variety which these authors 

 call " Large White Kidney " were resistant to all. Three distinct types 

 of cultures were found among those tried: one able to infect all varieties 

 except the two mentioned; a second that affected the Boston Pea and 

 snap beans but was not able to affect the Red Kidney to any extent; 

 and a third that brought severe infection to the Red Kidney, moderate 

 infection to the snap beans, but only slight infection to the Boston Pea. 

 Fischer (1919:254) records the observations of several German writers 

 concerning the comparative resistance of the different varieties grown in 

 Germany. Some are inclined to think that the wax varieties are more 

 susceptible, others that green snap beans are. Several have observed 

 that pole varieties are more resistant than bush beans, but Fischer says the 

 greater freedom of the former from anthracnose is due to their position 

 on poles, where the conditions are not so favorable for infection as with 

 vines near the ground. He is inclined to believe that the contradictory 

 observations show the existence of different strains of the organism in 

 the various localities. These observations, and those made by him on 

 twenty varieties planted so as to become infected from spotted seed 

 planted among them, lead him to believe that there is no variety in Germany 

 resistant to anthracnose at all times and under all conditions. The most 

 resistant variety of all appears to be Ideal Wachs-Buschbohne. Schaffnit 

 (1920) observed the relative degree of infection on forty-five varieties 

 of beans during 1914 and 1915 at six different localities in Germany, and 

 lists a number of German varieties under each of the following headings: 

 least attacked, moderately attacked, badly attacked. In general he found 

 that varieties descended from the stem "Flageolet" are the most affected, 

 while those descended from Hinrichs Riesen are the least affected; also, 

 that pole beans show much greater resistance than do bush beans. This 

 suggested to him the possibility of crossing pole and bush beans in order 

 to obtain a resistant bush variety. This work he had not completed at 

 the time when he prepared his paper. 



The writer (Barrus, 1918) reports the results of a large number of 

 inoculations made on many varieties of P. vulgaris and of other beans, 



