THE MELON PLY. 
17 
1. Cantaloupe. 
2. Watermelon. 
3. Pumpkin. 
4. Squash. 
5. Gourds. 
1. Eggplant. 
2. Water lemon (Passi- 
flora sp.). 
1. Sycos sp. 
1. Kohlrabi. 
CULTIVATED. 
Preferred. 
6. Chinese cucumber 
(Momordica sp. ) 
7. Chinese melon. 
S. Chayote. 
9. Cucumber. 
Occasionally infested. 
3. Orange. 
4. Fig. 
5. Papaya. 
10. Tomato. 
11. String beans. 
12. Cowpeas. 
6. Peach. 
7. Mango. 
8. Citrullus (Java), 
WILD. 
2. Momordica sp. 
Erroneously recorded host fruits. 
2. Cabbage. 
3. Peppers. 
CUCURBITACEOUS PLANTS. 
All the cucurbitaceous 
plants are subject to severe 
infestation, particularly 
of the young fruits. 
Cantaloupes are the most 
susceptible, since the vines 
as well as the fruit are 
attacked badly at all 
stages of growth, and the 
fruits do not appear to 
develop the resistance to 
attack found among the 
older watermelons, pump- 
kins, and squashes. Ordi- 
narily the cucumber is 
resistant to attack when 
very young, although it is 
rare that cucumbers of- 
fered for sale in Honolulu 
do not show some evidence 
of attack, even when 
very carefully collected. 
Cantaloupes and cucum- 
bers may be used success- 
fully by the female fly for 
egg laying up to the time 
Fig. 16. — Various deformities of very young pump- 
kins caused by infestations started before or just 
after fertilization of the ovary. These fruits per- 
sist for a time, owing to calluses developing about 
points of attack, but they never reach a much 
larger size and are ultimately destroyed by fungi 
and secondary attack. (Authors' illustration.) 
