34: 



rUXGI AXD FUNGICIDES 



not worth gathering up because of the rot with which 

 they are wholly or in part affected/' Other southern 

 states suffer equally serious losses. One orchard in 

 Arkansas has been rej^orted in which, in 1887, tlie attack 

 of the funsfus was so severe that seventv-fiye trees ^^elded 

 less than twenty-fiye bushels of fruit. A photographic 

 view of one of the depressed rotten spots as it appears on 

 the maturing fruit is shown in Fig. 17. 



This disease is distinguished after it has become 

 well established by the jDresence of small blackish pus- 



no. 17. APPLE SHOWrXG ROT SPOT. 



tules scattered oyer the surface of the apple. These are 

 the fruitinor spots of the funsrus. The mycelium which 

 has penetrated the pulpy tissue of the fruit in all direc- 

 tions, disorganizing it and causing the rot, here develops 

 a large number of cells, which rupture the skin of the 

 apple and produce the spores at the tips of slender pro- 



