45 2 CONNECTICUT EXPERIMENT STATION REPORT, 1912. 



66. Shear, C. L. Endothia radicalis (Schw.). Phytop. 3:61. F. 1913. 



67. Smith, J. R. The chestnut blight and constructive conservation. 



Penn. Chest. Blight Confer. : 144-9. 1912. 



68. Smith, J. R. The menace of the chestnut blight. Outing 1912 : 76-83. 



O. 1912. [Illust] 



69. Spaulding, P. Notes upon tree diseases in the eastern states. Mycol. 



4 : 148-9. My. 1912. 



70. Stewart, F. C. Can the chestnut bark disease be controlled? Penn. 



Chest. Blight Confer. : 40-5. J9I2. 



71. Stoddard, E. M. The chestnut tree blight. Conn. Farm. 4i 26 : 1-2. 



24 Je. 1911. 



72. Wells, H. E. A report on scout work on the north bench of Bald 



Eagle mountain, Pa. Penn. Chest. Blight Confer. : 235-41. 1912. 



73. Williams, I. C. The new chestnut bark disease. Science 34 : 397-400. 



29 S. 1911. 



74. Williams, I. C. Additional facts about the chestnut blight. Science 



34:704-5. 24 M. 1911. 



GENERAL SUMMARY. 



(1) Chestnut blight was first noticed in this country by 

 Merkel, of the New York Zoological Park in 1904, and in 

 1906 was attributed by Murrill, of the New York Botanical 

 Garden, to a fungus which he described as new to science, and 

 called Diaporthe parasitica. 



(2) The chestnut blight fungus has now been found in 

 twelve states, from New Hampshire and Vermont on the 

 north to Virginia and West Virginia on the south, and the 

 damage that it has caused has been variously estimated from 

 twenty-five to one hundred million dollars. 



(3) The fungus consists of a conidial, or Cytospora stage, 

 and a mature, or asco-stage, produced one after the other in 

 the orange- to chestnut-colored fruiting bodies, which break 

 out of the bark as small, more or less clustered pustules. The 

 fungus has also rarely been found on oaks, where as yet it 

 causes no particular damage. In artificial cultures only the 

 conidial stage occurs, whose spores exude in viscid drops, or 

 rarely in tendrils as in nature. Artificial inoculation of chest- 

 nut sprouts or seedlings produces the characteristic cankers 

 in the bark, and these can be produced somewhat in oak 

 sprouts. 



(4) This fungus has been found by Farlow, the writer, and 

 others, to come more properly under the genus Endothia 



