62 



POPULAR FRUIT GROWING. 



middle of the day starting active life in the portion of the trunk 

 exposed to its direct rays. Later, when a cold spell comes, the 

 protoplasm is destroyed and the soluble compounds formed by 

 the renewal of active life are decomposed. The trees most liable 



Fig. 17. — Apple trees in trial orchard protected from sunscald by 

 corn stalks. 



to this injury are those that are newly set and weak, those 

 with smooth bark such as Hard Maple and Basswood, those 

 trees with the trunks inclining to the northeast and thos« on 

 dry land. 



