Cantaloupes die before getting a chance to bloom

[troejg]

Hi, i am having trouble with my cantaloupe plants, i have 6 of them and they are 64 days old, and yet to form a single melon. The female flowers simply turn yellow and die before they have a chance to bloom. I am also growing watermelons at the same place with the exact same conditions, and they are thriving, biggest one weighing in at 2 pounds now. Here is some pictures of my cantaloupes: http://imgur.com/a/nDtet

Anyone have any idea as to why my cantaloupes turn yellow and die before getting a chance to bloom?