5O SPRAYING CROPS 



PRUNING TREES 



To use the spraying machine to best advantage 

 the orchard should be carefully and intelligently 

 pruned. On this potnt Mr E. G. Lodeman writes: 1 

 "The pruning and spraying of fruit trees are two 

 subjects which are closely related. This is especially 

 true in the case of the apple. Moisture is favorable to 

 the development of the apple-scab fungus. When the 

 tops of trees consist of a tangled mass of large and 

 small branches, they are much longer in dying out 

 than when they are open. Not only is a shelter given 

 to fungi, but their growth is encouraged, and each tree 

 becomes the distributing center of some disease. The 

 mischief is also aggravated by the fact that it is as dif- 

 ficult for any remedies to gain an entrance as it is for 

 the light and air. It is impossible to spray such trees 

 to advantage, even granting that the fruit borne by 

 them would warrant the expense. The head of the 

 tree should be open, so that all parts may be reached 

 easily with the spray." The presence of these useless 

 branches also requires the application of much more 

 of the spraying compound than is otherwise necessary, 

 thus involving a decided waste of time and material. 

 P>y all means prune your orchards properly before you 

 spray them. 



In planting new orchards, the trees should be set 

 so far apart that when full-grown they may easily be 

 sprayed. They should not be nearer together than 

 40 feet each way. 



A SPRAYING CALENDAR 



Dr William C. Sturgis of the Connecticut Exper- 

 iment Station has published the following provisional 

 calendar of the spraying operations for the year. As 



J Cornell University Experiment Station, Bulletin 48. 



