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PRINCIPLES OF PLANT CULTURE 



431. Pruning implements. — The principal pruning 

 implements are the following : 



Fig. 170. 



Figs. 167-170. — Pruning tools. 



Fig. 167. — "Sear's" pruning saw. 

 Fig. 168. — Perfection pruning saw. 

 Fig. 169. — Pruning knife. 

 Fig. 170. — All-steel pruning shears. 



The pruning knife (Fig. 169) is useful for removing 

 small woody shoots. The blade should be of good steel, 



