The Spraying of Trees. 



573 



plenty, it has been of decided benefit. So, wliolJy aside from the 

 idea of insuring against risk, it is advisable to spray for those insects 

 which are more or less abundant every year. Some insects and 

 diseases appear late in the season, so that in a year like the present 

 the spray may be needed at some epoch in the season. We had 

 marked success in spraying quinces last year (Bulletin SO), but we 

 have had better results this year. But I am not urging people to 

 spray their orchards. Those persons who will not spare the trees 

 this much of their attention will not be likely to do much in the 

 way of tilling and fertilizing. One must grasp the entire body of 

 principles of orchard management before he can hope for permanent 

 rewards. 



4. Spray thoroughly, or not at all. — I should say that fully half 

 the spraying which I have seen in western New York in the last 

 two or three years is a waste of time and material. Squirting a few 



133. — Spraying rig of T. G. Yeomans & Sons. 



quarts of water at a tree as you hurry past it, is not spraying. A 

 tree is thoroughly and honestly sprayed when it is wet all over, on 

 all the branches and on both sides of all the leaves. An insect or a 

 fungus is not killed until the poison is placed where the pest is. 



