208 YEARBOOK OF AGRICULTURE, 1926 
and send up sprouts which continue to spread the disease for many 
years. Consequently chestnut orchardists in the eastern half of this 
country can expect the blight to be an important factor, though losses 
lic. 41.—A_view of an orchard of hairy Chinese chestnuts planted by Doctor Van 
Ieet at Bell, Md. This species is being crossed with other species of chestnut. 
Many of the trees in this orchard have never had deep cankers which justified treat- 
ment, although the blight has been present in the orchard for the last 12 years 
from this diseases may be insignificant in localities where chestnut 
and chinquapin are not native. 
Experience in the department chestnut orchard at Bell, Md., indi- 
cates that in orchard practice the blight can be controlled on various 
strains of the hairy Chinese chestnut, Castanea mollissima, (fig. 41) 
