I foudn out that the nut tree in my graden has the diffrent colors of the leafs. Can you explain something about this? Also some of the leafs are infected. What is it? Taphrina deformans?
http://aggie-horticulture.tamu.edu/tisscult/chimeras/chimeralec/chimeras.html This explains it better than I could. The second is a harmless gall insect or mite.