16 FARMERS’ BULLETIN 1641 
parasite can not be definitely stated, though it is reasonable to expect 
that by selection among the seedlings growing from the nuts of the 
sprouts a quick-fruiting, moderately resistant strain of the American 
chestnut will finally be evolved. ; 
Many owners in different parts of the country have written to the 
Department of Agriculture at Washington for advice on how to keep 
their chestnut sprouts alive. Whether sprouts should be treated or 
not is a question that the individual owner must decide, but in nearly 
all cases treating sprouts is a waste of time and money. Treatments 
have to be repeated, and as the trees become larger the cutting out of 
new infections becomes increasingly difficult. In most cases it is to be 
expected that the disease will finally kill the sprout or tree. The 
same expenditures made in planting and caring for Asiatic chestnut 
Figur 13.—An exotic chestnut tree, valuable for its beauty, shade, and edible nuts. 
The blight was cut out about five years ago, and it has not reappeared 
trees will yield better returns in both nuts and shade. Figure 13 
shows the effect secured with an exotic chestnut. To those who wish 
to work with the American chestnut for sentimental reasons, or be- 
cause the sprouts are growing at hand on their land, suggestions for 
treatment will be sent upon request. 
A number of strains of the Asiatic chestnuts have been brought 
to the United States by the Office of Foreign Plant Introduction * in 
the hope of obtaining a tree which will thrive despite the chestnut 
blight. None of the trees so far imported and tested have proved 
mmiune, but the Japanese chestnut (Castanca japonica Blume) and 
the hairy Chinese chestnut (C. mollissima Blume) (fig. 14) have 
considerable natural resistance to the disease. Private individuals 
'GALLAWAY, B. T. THE SHARCH IN FORBIG vT 
7 Bot: OF N FOREIGN COUNTRIBNS FOR RLIGHT-RESISTANT CHESTNUTS 
AND RELATED TRHN CROPS. U. 8. Dept. Agr., Cire. 383, 16 Des illus. 1926. 
