12 



BULLETIN 643, U. S. DEPARTMENT OF AGRICULTURE. 



■withered, growing tip. In this case the eggs were laid just be3 T ond 

 the leaf and flower stalks. 



"When the eggs are laid in the older though still very young and 

 succulent watermelon vine, the larvae, on hatching, tunnel their way 



Fig. 11. — Melon-fly eggs in blooms of pumpkin. Two buds of the male bloom sectioned 

 to show the eggs deposited through the corolla. (Authors' illustration.) 



through the vine, eating out the center and causing it to wilt and die. 

 Figure 10 shows a vine sectioned to expose the five well-grown larvae 

 which have killed it beyond the base of the leaf in the upper left- 

 hand corner of the illustration. The serious setback to vine develop- 



