AN AGRICULTURAL REVOLUTION. 



645 



withers and falls off. By means of fungicides and the spraying 

 machine, horticulturists are now able to prevent this disease com- 

 pletely. A large number of experiments in controlling it have 

 been remarkably successful, and the difference between sprayed 

 and unsprayed trees has been graphically illustrated by Mr. Gal- 

 loway at Fig. 7. the engravings being faithful reproductions of 

 photographs from Nature. Recent experiments have proved that 

 the so-called apple scab — a disease which ruins a large percentage 

 of the apple crop every year — may also be prevented by spraying 



'am^ 





treated. untreated. 



Fig. 7. — Pear Leaf-blight Experiment. 



with fungicides ; and many other of the most destructive plant 

 diseases are already under control, while experiments and investi- 

 gations are continually progressing, with a view of bringing into 

 subjection those which are yet out of reach. 



It was naturally to be expected that the fruit-consuming public 

 would object at first to purchasing fruit which they knew had 

 been sprayed with poison. This is shown in the recent " grape 

 scare" in New York city, and the present attitude of certain 

 English journals toward the importation of American apples. But 

 when the spraying, with either the insecticides or fungicides now 



