176 Mortier F. Barrus 



California-grown Early Wonder seed gave excellent results, and the 

 plants ripened two weeks earlier in Michigan than did plants of the same 

 variety from seed grown in Idaho and from seed grown in Michigan. 

 Muncie believes that carefully selected seed sent to southern California 

 to be grown for one year for seed purposes, will furnish a supply of seed 

 year after year that will be superior to Michigan-grown seed. 



Edgerton (1910:28-37) states that at the high summer temperatures 

 in Louisiana, bean anthracnose does not develop even when spotted 

 seed is planted; and later he suggests (Edgerton and Moreland, 1913:17) 

 that Louisiana truckers grow their own bean seed during the summer 

 as a second crop and thus secure seed freer from disease than that pur- 

 chased from the North. 



The question whether eastern growers would have better success in 

 buying western seed than by the use of eastern-grown seed is still 

 unanswered. . It must be considered from other standpoints as well as 

 from that of controlling anthracnose. It is true that this disease does 

 not occur as commonly or cause as much damage in the West as in the 

 East. It was, however, rather prevalent in Colorado in 1916 and 1917, 

 and to an extent sufficient to cause some spotting of the seed. Bacterial 

 blight occurs rather commonly in the West, so that one cannot depend 

 on western seed being free from this disease. Nevertheless, eastern 

 seedsmen have found that they can depend upon getting good seed from 

 the West oftener than from the East, and the bean-seed-growing industry 

 has developed rapidly in Colorado and Idaho in recent years. Most of 

 the seed beans grown are garden and canning varieties, which command 

 a much higher price in the East than the ordinary field sorts. 



Avoiding conditions favorable for the dissemination and growth of the fungus 



If it becomes necessary to plant seed having a small percentage of 

 anthracnose infection, or if the disease appears in the field from an outside 

 source of inoculum, or even when clean seed is planted, it is advisable 

 to avoid as far as is practicable those conditions which favor the spread 

 of the pathogene. Healthy plants have been grown from clean seed 

 in experimental plots in the same field with plants that have become 

 badly diseased from artificial inoculation with the anthracnose fungus. 

 It has been observed also in a large number of instances that plants 

 in hills next to inoculated plants often did not become infected although 



