PROPAGATION BY BUDDING AND GRAFTING 135 



ment of the bud is similar to that of the ordinary shield- 

 bud. 



The patch-bud (Fig. 148) is very like the plate-bud, but the 

 bark is cut away from the stock with no hanging strip. This 

 old method has recently been revived for propa- 

 gating the mango and certain thick-barked sub- 

 jects. Brown writes as follows on a home-made 

 knife for cutting the patches (B. S. Brown, "Modern 

 Propagation of Tree Fruits," 1916) : "Where very 

 much bark budding is done a special knife for 

 cutting the exact size of the patch is necessary. 

 This can be made by fastening two thin steel knife 

 blades to a block of wood so that two parallel cuts 

 can be made at one time. Such a tool when drawn 

 horizontally across the bark and then vertically, 

 will cut a square patch the desired size. If the 

 blades are set about one inch apart, the patch will 

 be one inch square which will be large enough for H -budding 

 most work. The same knife can be 

 used in cutting the buds by drawing it around the 

 twig. After the patch containing the bud is 

 removed the sides can be trimmed to secure a 

 perfect fit." The illustration is adapted from 

 Oliver, Bull. 46, Bur. PL Ind., U. S. Dept. Agric. 

 It is a form of flute-budding. 



H-budding (Fig. 149) is a modification of plate- 

 budding. In this method, a flap is formed both 

 above and below, covering the bud from both 

 ends, and allowing of more perfect fitting of the 

 bark about the bulge of the bud. 

 FIG. 150. Flute- Flute-budding : In this method the bud is not 

 budding (x |). covere d D y tn e bark of the stock. Fig. 150 illus- 

 trates it. A piece of bark is removed entirely from the stock, 

 and a similar piece is fitted into its place. When the wound 



FIG. 149. 



