ROOT-KNOT DISEASE OF TOMATOS. 

 Cresylic Acid or Liquid Carbolic Acid — (cont.). 



6 7 



Year. 



Plot 39. Rate 465 gal. per acre. 



1915 



1916 

 1917 



Before. After. 

 X Black carbolic dis- X 



infectant 

 X Cresylic acid X 

 X > O 





Year. 



Plot 36. Rate 465 gal. per acre. 



1915 

 1916 

 1917 



Before. After. 

 X Vaporite X 

 X Cresylic acid Tr 

 Tr > X 



Year. 



Plot 43. Rate 465 gal. per acre. 



1915 

 1916 

 1917 



Before. After. 



XX Izal X 

 X Cresylic acid X 

 X > Tr 





Year. 



Plot 42. Rate 465 gal. per acre. 



1915 

 1916 

 1917 



Before. After. 

 XXX Jeyes* XX 

 XX Cresylic acid X 

 X > X 



Year. 



Plot 44. Rate 465 gal. per acre. 



1915 

 1 91 6 

 1917 



Before. After. 

 XXX Clubicide XX 

 XX Cresylic acid X 

 X > O 



Diseased Subsoils Treated with Proprietary Powders. 



Vaporite. 



Year. 



Plot 36. Rate 15 cwt. per acre. 



1 91 5 

 1916 

 1917 



Before. After. 



X > x 



X Cresylic acid Tr 

 Tr Cresylic acid X 



Year. 



Plot 27. Rate 69 cwt. per acre. 



1915 

 1916 

 1917 



Before. After. 

 XXXX Sulphur XXXX 



XXXX > XXXX 



XXXX HgCl, X 



" V.N." 



Year. Plot 59. Rate 112 cwt. per acre. 



Before. After. 



1 91 5 XXX Creol XXX 



1 91 6 XXX > XXXX 



1 91 7 XXXX Saponified XXXX 



creosote 



Powder. 



Year. Plot 35. Rate 56 cwt. per acre. 



Before. After. 



1915 XXX > XXX 



1 91 6 XXX Cresylic acid XXX 



1 91 7 XXX Cresylic acid XX 



V.C." Powder. 



Year. 



1915 

 1916 

 1917 



Plot 34. Rate 53 cwt. per acre. 



Before. After. 



X > O 



O Nothing X 



X Cresylic acid O 



Year. 



Plot 60. 



Rate 112 cwt. per acre. 





Before. 



After. 



1915 



XXX 



Creol XXX 



I916 



XXX 



> XX 



1917 



XX 



Saponified XXX 







creosote 



