David, it's a risky idea to include your e-mail address on a public forum. You really should edit that out of your post above. If you or we want to communicate privately, this site has what we call "Tree Mail" which you can access by clicking on the little envelope icon in the blue sidebar at left. In any case you will be notified by the site whenever anybody replies to your thread.
Could you please show us a picture of the whole tree as well? Is it in a pot or in the ground? How big is it and how long since you planted it?
IF it's in the ground, did you amend before planting with anything? IF in a pot, what kind of potting soil did you use? What fertilizer?
Have you tested your irrigation water to see what the pH is? If it is well water, it could be quite high (alkaline) and that can affect a lot of plants in their ability to take up nutrients.
It looks to me as if you have more than one problem going on there - the leaves are very yellow, which indicates a nutrient deficiency and when a tree is stressed it often is invaded by pests as a secondary thing.
