Can someone please help me figure out what is up with these plants? I have added a link of pictures of the watermelon, cucumber and cantaloupe in question. This is the first year I have gardened and I just turned the soil over in early spring. Also, the garden only gets sun from about 2-7. I know that isn't ideal, but not sure if that is part of this. We also received several inches of rain on Wednesday last week, a couple of days after I transplanted these. None of my other plants seem to be having this issue. Does this seem to be a disease issue or pests?
Thanks in advance!