VEGETABLE DISEASES. 



191 



clotliing, or insects. 



Sometimes the leaves dry up and 

 fall to the ground, when the " mycelium " present in the 

 tissues quickly grows, forming cobweb-like threads, which 



FX.I52J 



CUCUMBER AND MELON LEAF BLOTJH (CEEOOSrORA MELONL«). 



1, Infected leaf; 2, Magnified -siew of the fungus; 3, Fruit of tlie fungus. 

 (I'lom Board of Agriculture Leaflet.) 



nm on the surface of the soil, producing more conidia. 

 Failing food, the disease passes into a resting state, in 



