Papaya plants must be properly watered according to instructions; otherwise, too much water can lead to root rot. This condition quickly kills the papaya fruit because of the lack of drainage at the planting site. Poor water drainage cuts off oxygen to the plant and it also causes fungi to form, causing more damage to the papaya. One way to avoid root rot disease would be to plant papaya seeds in raised planting beds or in garden spaces with better water drainage. Hope that is of help. Good luck.