
Bean Blight. 
In the article on Bean Anthracnose reference was made to a 
bacterial disease which in some cases is even more destructive to 
beans than anthracnose. In the kitchen garden at this Station 
it was very destructive during the past season. It developed into 
a serious malady about the first of August and did the most dam- 
age during the hot weather of that month. A plat of wax beans 
was the first to be badly affected and the plants were ruined 
within a few days after the serious nature of the disease first 
attracted attention. The foliage became spotted and yellowed in 
large areas of the leaf surface and soon the leaves withered and 
fell away. Many of the pods contained soft or watery spots 
showing the presence of the disease, or they became withered from 
lack of nourishment after the foliage was destroyed. Frou: these 
beans the disease spread to an adjacent plot of a different variety 
and it also was soon completely ruined. 
In its early stages this blight forms small pimples which have 
a watery appearance. 'These may occur on the pods, blossoms (?), 
foliage or stems. They may or may not have a dull red border 
but do not have either the black color or the sunken spots which 
characterize anthracnose. Microscopic examination in the early ~ 
stages of the blight failed to reveal the presence of any mycelium 
but bacteria were always present. In later stages saprophytic 
fungi gained entrance through the diseased places and hastened 
the destruction which the bacteria had inaugurated. 
_ The question suggested itself whether the blight might not be 
k an accompaniment of the anthracnose attacking the tissues already 
infested by this fungus. The question was answered in the 
negative by the fact that in one field blight was found everywhere 
" _ present on Mexican tree beans while no trace of the anthracnose 
it could be found on any plants of this variety though they were 
«growing adjacent to Red Kidney beans which were attacked by 
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