PEACH AND THE PEAR. 2^^ 



you will see the little snake-like bodies moving about 

 and feeding on the mycelia present in the fluid with 

 them. 



Now, having described the different kinds of blight 

 affecting the pear, we come to treat of its cause. What is 

 the cause of blight .' As in yellows in the peach, I 

 believe the cause of each and every form of blight in 

 the pear to be bacteria, and I believe that blight 

 flourishes most in land that has been enriched by lime 

 and green manures, stable manure, barn-yard manure, 

 hog manure, and all green matters which have to go 

 through fermentation before being resolved into 

 their elements, and before they can become food 

 for plants and trees. I believe such land with 

 such surroundings furnishes the most inviting territory 

 for the proliferation, so to speak, of these bacteria, 

 and with the crowding of trees into this territory, 

 we have here every element for their production, 

 for their endurance, and for their life-work. For a 

 description of these animals, or vegetables, as they 

 may be, I refer the reader to the chapter on Peach- 

 Yellows, where he will remember they are described. 

 Now when we were describing Fire-Blight, Frozen Sap- 

 Blight, etc., had wc but added and adduced these 

 bacteria as the cause, coming in the sap, under circum- 

 stances rendered favorable by succulent growth, freezing, 

 by the irregular seasons, and by the heat of spring and 



