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CHAPTER XXVI 



OF THE CANKER, AND GUM. 



A Defcription of the Canker ; its Origin and Progrefs — Full 

 Directions for Caring it — Of the Gum and its Reined]/. 



The Canker is a difeafe incident to trees, which occafions 

 the bark to grow rough and {cabby, and turns the wood 

 affected to a rufty brown colour. This difeafe, if no remedy 

 be applied, will in time totally kill the tree. 



Apple-trees are very liable to be infected with the canker 

 from the following caufes, viz. 



From injudicious pruning^ from the footflalks of the fruit 

 being left on the trees, and from injuries fuftained by applying 

 ladders in gathering the fruit ; thefe injuries are very hurtful 

 to the tree, and will infallibly bring on the canker when no 

 remedy is applied. A man ought to fland on fteps, in (lead of 

 a ladder, when the fruit is out of his reach from the ground* 

 Care ihould alfo betaken in nailing, that the ihreds be not 

 too tight, which caufes a fwelling in the fhoot, and very often 

 produces the canker. 



I i Another 



