Bui. 491, U. S. Dept. of Agriculture. 



Plate VIII. 



Result of Infestation of Pumpkin Blooms by Larv/e of Melon Fly. 



Buds of the male flowers of pumpkin affected by the larvae of the melon fly. Figures 1,2, and 3 repre- 

 sent the various stages in the destruction of the male bloom after the larvae hatching from the eggs 

 shown in Plate Vlf have begun to develop. In figure 1 the larvae have destroyed the pollen and are 

 devouring the receptacle. In figure 2 the inflorescence is hanging and the larva? are still within, while 

 figure 3 represents the final stage of destruction. During the warmer months of the year practically 

 all male flowers are affected, although many succeed in blooming. (Original.) 



