Practical Orcharding On Rough Lands. 253 



parts of the plants and fruits be covered. If 

 one side of every apple on the tree should be 

 kept covered with an effective fungicide, while 

 the other side was left exposed, the entire crpp 

 might be lost from Bitter Rot or other fungous 

 diseases For if one side of the fruit is ex- 

 posed the whole is in danger, so with all appli- 

 cations of sprays they must be thorough if we 

 can even hope to be successful. When we think 

 of why and how we spray we should remember 

 that it means a thorough application of the 

 proper materials applied in time to afford pro- 

 tection to our crops. 



What Shall We Spray With? — In order 



to know what to spray with we must not only 

 know what troubles are likely to attack our 

 plants and fruits, but we should have some 

 knowledge of the ability of different plants to 

 stand applications of certain materials of the 

 various strengths. For example, the peach tree 

 will not stand an application of Bordeaux the 

 same strength as the apple. 



Again we should take into consideration the 

 time of the year as to the strength of the solu- 

 tion, whether the trees are growing or dormant, 

 as well as the kind of material used. After 

 considering the plant and its ability to stand 



