224 



PLANT PROPAGATION 



287. Waxed bandages may be prepared in the same way 

 as waxed string. They are best made of old cotton sheets 

 or similar cloth torn in strips of any desired width and 

 wound in rolls like tape. For binding large wounds, as 

 in bridge grafting, they are excellent. 



POPULAR GRAFTING WAXES 



289. Rubber strip in grafting. R. B. Rogers, an English experi- 

 menter, has found pure rubber electric \vire insulation strip use- 

 ful in grafting. It is bought as rolls. The grafts are fitted as 

 usual, the strip stretched well and wound tightly so as to cover the 

 exposed part, exclude air and hold the cion firmly in place. A 

 strin four or five inches long and one-half inch wide is enough for 

 ordinary grafts. Rubber solution should be used to make the ends 

 stick. Strip need not be removed, since it stretches and rots with 

 graft growth. Old strip quickly spoils in the sun. 



290. Wrapping grafts with cloth, rubber, waxed paper, plain 

 thread, waxed thread and plain thread with the unions waxed, were 

 experimentally tried by the government to determine the effect on 

 crown gall. From the large amount of data it is concluded that 



