New Yorx AGRICULTURAL EXPERIMENT Station. 161 
other. Usually, the affected branches were scattered all through 
the top. Lateral branches were more apt to be affected than main 
or leading branches, but there were some exceptions even to this 
rule. If any part of a leaf was affected the whole of it was af- 
fected, with very few exceptions. The majority of the affected 
leaves were still hanging upon the twigs on October 4, but they 
showed a tendency to fall somewhat earlier than the healthy 
leaves. The twigs were plump and outwardly normal. The cortex 
was green and apparently normal, but the sapwood was slightly 
discolored. ‘This discoloration was most pronounced on twigs of 
the present season’s growth, but was noticeable all along the 
branch. 
The foreman in charge of the orchard states that the disease 
appeared rather suddenly, although not quite all at once and that 
it occurred about August 20. The orchard was affected in a 
similar manner in 1898, but not so severely. In 1898 the scorch- 
ing appeared in July before picking was all done and it was 
feared that the following crop would be considerably lighter 
because of it. However, such was not the case. The crop of 
1899 was a heavy one and there were no visible effects of the 
scorching of the foliage the previous summer. This orchard was 
also slightly affected in 1897. 
It appears that cherries are much more liable to this sort of 
injury than are pears, plums or apples. Scattered through the 
affected cherry orchard there were a few small pear trees which 
had been planted to replace dead cherry trees. None of these 
pears showed any sign of leaf scorch; neither did the pears lo- 
cated at A (see Plan) on the same kind of soil. Plum trees 
at C and F immediately adjoining the diseased cherries were in 
perfect health. The several different varieties of apples at E 
were also unaffected. The English Morello cherries at B were 
considerably affected but not so severely as the Montmorencies. 
The Montmorency orchard at D was composed of young trees 
and situated upon moister and deeper soil. However, a good 
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