If you've been getting rain, stop watering. Too much water can cause the roots to rot. Are you fertilizing too?

Having critters munch the leaves, shoots, and even culms is normal, but with really small plants you may want to provide some protection. Leaf munchers: snails, caterpillars, birds (I've seen finches eating the not-yet-opened leaves), rabbits, deer (might taste a few). Shoot munchers: caterpillars, rabbits, squirrels, deer (again, just a taste). Culm munchers: woodpeckers (not really munching, but they still make holes).

You might want to think about covering your rufa next winter. I'm surprised it got topkilled. Was it really tiny, or planted late in the fall?

Overall, I think your stuff looks ok. You don't have any significant damage that would indicate a major problem.

yea i stopped watering and i did fertilize a little but after i did i read that you shouldn't do that with new plants. the rufa i planted before i really knew much about bamboo and the instruction said to plant it in full sun which i know know is wrong. so it was in an open area getting blasted with nice michigan winter wind. when i seen it was still a little green i moved it to a more shaded and protected area and gave it some TLC and it really took off.