Diseases and Injuries 



of a pin point. Later on they enlarge and run together, and the leaf finally 

 turns yellow and dries up. The presence of the disease can be detected long 

 before there is any indication of it upon the surface, by looking at the leaf 

 held toward the strong light. Recent observations of this disease seem to 

 have determined that it is caused by the attacks of various insects, such as 

 red spider, thrips, and more particularly aphis ; and wherever the plants are 

 kept free from these insects, the bacterial disease does not seem to de- 

 velop. Therefore, the best remedy, or preventive, of this disease seems to be 

 to keep down the insects, and propagate only from healthy, vigorous stock, 

 selecting the strongest plants, which should be kept in active growth. 



In general, it may be said that all diseases may be largely prevented, or 

 modified, by keeping the plants in an active, growing condition, avoiding 

 overwatering, overfeeding, as well as the overforcing which ensues when 

 the temperature is carried too high. By a close observation of all these points, 

 and, in addition, providing abundant ventilation, the grower will generally 

 have but little serious trouble with diseases. 



BIBLIOGRAPHY OF CARNATION DISEASES, AS COMPILED BY PROF. \VM. C. STURGIS, OF THE 

 CONNECTICUT EXPERIMENT STATION. 



Anthracnose (Colletotrichum sp.) 



Descr., N. J. Agr. Exp. Sta., Rep. 12, 1891. p. 301. ^892) 



Anthracnose, (Volutella Dianthi, Atkins.) 



Descr., N. J. Agr. Exp. Sta., Rep. 14, 1893, pp. 385 & 386. (1894) 



Bacteriosis (Bacterium Dianthi, Arth. & Boll.) (i) 



Descr. Illus., Ind. Agr. Exp. Sta., Bull. 59, pp. 17-34. ( r 896) 



Treat., Ind. Agr. Exp. Sta., Bull. 59, pp. 34-37. ^896) 



Leaf-Blight, (Alternaria, sp.) (i) 



Leaf-Mold (Heterosporium echinulatum, (Berk.) Cke.) ( 20 ) 



Occ., N. J. Agr. Exp. Sta., Rep. 14, 1893, p. 386. (1894) 



Leaf-Spot (Septoria Dianthi, Desm.) 



Descr., N. J. Agr. Exp. Sta., Rep. 14, 1893, pp. 384 & 385. (1894) 



Treat, (pos.), N. J. Agr. Exp. Sta. Rep. II, 1890, p. 363. (1891) 



Rust (Uromyces caryophyllinus, (Schrank) Schrt.) 



Descr. Illus., Gar. and For., Vol. V, pp. 18 & 19. (1892) 



Treat, (pos.), N. Y. (Corn. Univ.) Agr. Exp. Sta., Bull. 96, pp. 334 & 



335- (1895) 



N. Y. Agr. Exp. Sta., Bull. 100, pp. 50-68. (1896) 



Gar. & For., Vol. X. p. 444. (1897) 

 Stigmonose (Woods.) 



Dep. of Agr., Div. Veg., Phys. and Path., Bull. 19. (1900) 

 Wilt (Fusarium sp?) 



Descr., Conn. Agr. Exp. Sta., Rep. 21, 1897, pp. 175-181. (1898) 



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