89 



All lateral growth should be iiinched back during tlie suinmer. Any growtli starting 

 from the main stem during the first season is also Itest pinched back instead of 

 being removed altogether, because of the foliage obtained by pinching back. This 

 growth affords protection from the sun, and in this climate it is very necessary 

 to shield the trunk, main arms, secondary arms, and leaders from sunscald by 

 giving the tree all the foliage possible. If the tree suffers from sunscald in any 

 of its pai'ts, there will be no possibility of preventing its gumming ; only in those 

 trees which have a hue, green, healthy bark will gumming be avoided. Sunscald 

 binds the bark to the cambium layer, closes the pores, and this interferes with 



Fig. 1114. 

 The same tree pruned. 



the sap-flow. This interference with the sap-flow is largely the cause of the 

 disease known as gumming. 



In the fourth year the leaders should be pruned very long, (or if sufficient 

 leaders have bee.i obtained, as in illustrations, they are allowed to go unpruned) 

 because the cherry in this State is highly impatient of the knife. It should now, 

 therefore, be pruned as little as possible, and the leaders should be left from two 

 feet to twj and a-half feet, according to the vigour of the tree. 



Give attention to the tree during the summer, for by constant nipping of the 

 laterals and by the removal of cross and useless branches little remains to be done 

 in the winter. 



