Hi Mom23-- I just thought I'd chime in here, as I could have written your initial post myself when my dd11 was in Kindergarten. I think her issue was a bit of perfectionism. (If I can't read as well as my friend, well then I just won't read. I'll do more math!). For her, the impetus to read was the promise of a big party at the beginning of the next school year for children who had read a certain number of pages over the summer. She started the summer with Bob Books (beginner readers) and ended it with My Side of the Mountain.
There is nothing quite like the power of a well-timed bribe.