cobb's disease of sugar-cane. 35 



71 A. Same as 70 A. 



71 B. Same as 70 A. 



72 A. Same as 70 a. 



72 B. White and red striping in the pricked area, and a white stripe with a few little brown dead patches on it 4 inches 



above the pricked area. 



73 A. White striping in the pricked area. 



73 B. White and red striping in the pricked area 2 inches above and 2 inches below. 



74 A. Dead on both sides of the midrib in the pricked area, and white striping, which extends 4 or 5 inches above on 



either side. 



74 B. White striped or dead in the pricked area. 



75 a. White striping in the pricked area, extending above 6 inches, and below 4 inches. Occasionally, small rusty 



patches in the white stripes. 



75 b. Like 75 a. White striping extends at least 4 inches below pricked area, and as far above on both sides of midrib. 



76 A. Dead in the pricked area on both sides of the midrib. White striped for several inches above the pricks and a 



few inches below. There are some stains in the midrib. 



76 b. Dead in pricked area on both sides of the midrib. White striped for several inches above the pricks and a few 



inches below. 



77 A. White in the pricked area, running up about an inch. 



77 b. Brown dead spots in the pricked area. White stripes run about 2 to 3 inches up and down. 



Louisiana No. 74. 



78 A. Faint white striping in the pricked area, red striping in the midrib, and a rusty stain along one edge of the leaf for 



a distance of 8 inches, beginning in the pricked area. 



78 B. Conspicuous red stain in the pricked part of the midrib, extending upward for 2 inches and downward for 1 inch. 



79 A. Slight white striping in the pricked area. Faint red stain in the midrib. 



79 B. Slight white striping in the pricked area. Faint red stain in the midrib. 



80 A. Conspicuous red stain in the midrib in the pricked part, also 1 inch above and 2 inches below. 



80 b. Like 80 a, but also some white dead stripes in the blade to either side of the midrib (pricked part). 



81 A. No signs. 



81 b. Slight red stain in the pricked part of the midrib. 



82 A. No distinct signs. 



82 B. Same as 82 A. 



Common Green. 



83 A. Dead in the pricked area to either side of the midrib, and yellowish stripes with brown specks in them extending 



upward 3 inches on one side and 6 inches on the other. 



83 B. Same as S3 A, but signs more extensive, and traceable above the pricked area for about 8 inches, and downward a 



lesser distance. 



84 A. Distinct white striping in the pricked area, with red specks in the white stripes. These run interruptedly to a 



distance of a foot above the pricked area on one side, and about 4 or 5 inches on the other side. 



84 B. Same as 84 A. 



85 A. White striping in the pricked area. Some of the tissue dead. White striping, with brown specks in it, runs up 



interruptedly to a distance of a foot on one side of the midrib above the pricked area, and nearly as high 

 up on the other side. 



85 B. Same as 8.5 A. The striping is not so extensive. 



86 A. Dead in the pricked area in places, and white stripes extending upward about 6 inches. 



86 B. Same as 86 A. 



87 A. White stripes in the pricked area and for 10 inches above; 2 inches below. Red specks in the white stripes. 



87 B. White striping in the pricked area for 10 inches above and 2 inches below. A few red spots in the white stripes, 



and red striping in the pricked area of the midrib. 



Blanca. 



88 A. White striping in the pricked area, extending upward 4 inches on one side; downward a lesser distance. 



88 B. Signs less conspicuous than in the others. 



89 A. White striping in the pricked area, running up interruptedly 6 inches, and down a lesser distance. 



89 B. Same as 89 a. 



90 A. White striping in the pricked area. Some of the tissue dead. On one side it extends upward from the pricks 5 



inches, with little rusty brown specks in the white. 



90 B. Same as 90 A, only striping more conspicuous. The stripes extend downward a lesser distance than upward, and 



this remark is true of all so far examined. 

 The checks appear to be sound. 



Jamaica. 



91 A. A little red stain in the midrib of the pricked part. 



91 b. Same as 91 a. Signs not conspicuous. 



92 a. Red stain in the midrib of the pricked part about 0.06 inch wide and about 1 inch long. 



92 b. Same as 92 A, but red stain in the midrib 2 inches long. No other signs. 



93 A. Slight red stain in the pricked part of the midrib about 0.5 inch long and 0.125 inch wide. No other signs. 



93 b. Less signs than in 93 A. 



94 A. Slight signs in the midrib, that is, a red stain 2 inches long and a little of the tissue dead. 



94 b. Same as 94 A. 



95 a. Same as 94 a. 



95 b. Same as 94 A. 



96 A. Signs slight. Red in the midrib for 2 to 3 inches. 

 96 B. Same as 96 a. 



The signs on this variety are inconspicuous. 



