I bought a navel orange tree (full) over a week ago from a local nursery and when I got it some of the leaves had small barely noticeable yellow spots on the leaves. I would like to know if that indicates a problem. There is also some white powdery stuff on the leaves and some rust looking spots under some of the leaves. I also noticed that one or two of the leaves looked like something chewed on them, fast forward to today. I get home from work and check on it and notice 2 leaves on the ground, i dont know if it was from the wind or they randomly fell off, i just want it to grow healthy and strong. I would also like to add that I transplanted it to the ground a day after I got it.