Zacarias

Hey all,
I have some bananas that in containers and on one, the new leaf was looking great until today when I see it is crisped on the ends. Another small one just planted two weeks ago has become yellow from the outside in just today.
It is definitely spring here in Phoenix with temps in the mid 80s during the day for the last week or so but I wonder why they would do change today? Is it something else?
After this, I put a partial bamboo shade to protect my plants from the horrid sun come the dead of winter, but maybe it will help even now.
I put pictures of these in the gallery under my username Zacarias
Zach