Doesn't look like disease to me. More like a physical injury, say high winds. Where are you located? Have you had a lot of wind, rain, frost or ???

Oh that would be wonderful news! I'm in South Central Kansas & while it's always windy here, we've had some eespecially bad days over the past two weeks. We've also had an awful lot of rain this week (though the trees were looking bad prior to the rain). It never occurred to me that the wind/rain could make them look SO awful.

kristin:

It's the wind. On Monday we were 96F with 67 mph winds and 3% humidity. You're not much different. We have peaches and plums that have hardly gained any leaves. The wind beats them off as fast as they grow. But things will ease up soon, I hope anyway, and the trees will do fine...until it hails...again...:) Last year we had six hails only one so far this year.

Greetings Kristin from N-C KS! The wind definitely beats up the leaves on pear and apple. I am not certain but I may be seeing some orange Cedar Apple Rust on the top of one of those leaves. If it is CAR, it shows up as individual orange spots on the leaf tops first. Look it up on the web and you should be able to find plenty of pics. to judge yours by. The disease is common and definitely needs to be sprayed for if you have Eastern Red Cedars within 1 - 2 miles of your trees unless your trees are at least CAR resistant. Two highly resistant apple trees are Freedom and Liberty, there are a few others.