Apple ignorance

Sorry if this is a stupid question! I have been following all the recommendations on my one lone apple tree ( pruning, fungicide,pesticide - just a little, and picking off excess fruit) but now I see that the leaves have just a hint of yellow. Now it's only the end of July so I don't think it's the season. Nothing serious ( I hope ) but sometimes a novice takes note of things... you know?
Ron H. in west central Wisconsin.
----------------- - *Completion*Retention*Speed* Access your favorite newsgroups from home or on the road -----------------
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file
Upload is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.