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



Plate XX. 



Damage to Squashes by Larv/e of Melon Fly. 



As pumpkins and squashes become well grown they are not subject to as great infestation as when they 

 are newly set. The female flies persist in ovipositing in any abrasions in the rind and in older punc- 

 tures. The larvaj hatching are not able to penetrate the pulp to any great extent, but develop in 

 small ulcerlike spots in the outer portion of the fruit, from which they push the developing decay, 

 as shown in figure 1. While this infestation does not cause complete destruction, it seriously alfect s 

 the symmetrical development about the affected areas. Figure 2 represents a squashslighllv affected, 

 while figure 3 represents one very badly affected although still fit for consumption. (Original.) 



