Effects of Spraying. 347 



and home use the protection which he has heretofore 

 not enjoyed. 



4. Spraying is bound to force a closer study of 

 the companionships and inter-relations of crops, 

 fungi and insects. It will teach the farmer to ob- 

 serve that certain pests follow the round of certain 

 crops, and that when he breaks such a rotation he 

 also lessens the liability of attack. It will also force 

 him to the use of shorter rotations, for it is a very 

 nimble insect or fungus which can keep pace with 

 a lively and resourceful farmer. He will come to 

 learn that the best treatment of the anthracnose on 

 raspberries may be a short rotation rather than 

 spraying. In fact, the best treatment may be a 

 combination of both ; but he will find that if he 

 reduces the number of crops to two or at most to 

 three, and then has plantations coming on in other 

 land, he will suffer comparatively little. The same 

 suggestion is extremely applicable to the cultivation 

 of strawberries. 



5. Spraying will take its place along with till- 

 age, fertilizing, pruning, and the other cardinal opera- 

 tions of the fruit plantation. 



6. Spraying is bound to force better care, in order 

 that the crop may repay the extra cost of the treat- 

 ment. The advent of the potato -bug has no doubt 

 exercised a very pronounced influence in improving 

 the cultivation of the potato, and it is probably not 

 too much to hope that the apple -scab is bound to 

 revolutionize apple - growing in the northeastern 

 states. 



