Gerry:

There are a few things you can do.

1) Put a 24" tall temporary fence around the pond in the fall to catch the leaves.

2) Buy a 3-point PTO driven blower for your tractor to blow all the leaves back into the woods when they land on the grass.

3) Use muck digesting pellets once you have the aeration system in.

www.hoosierpondpros.com

[Linked Image from lh6.ggpht.com]
http://www.pondboss.com/subscribe.asp?c=4
3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).