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 foree 
him to the use of shorter rotations, for it is a very 
nimble insect or fungus which ean keep pace with 
a lively and resourceful farmer. He will come to 
learn that the best treatmeut 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. 
