2002 Honda Accord IS IT MY TIRES OR MY STRUTS

I HAVE ABOUT 18000 MILES ON A SET OF CHAMPION HR TIRES (FIRESTONE), BUT AFTER ABOUT THE 3RD MONTH OF OWNERSHIP, I NOTICED THE TIRES WERE "NOISY".

I HAVE THE ALIGNMENT CHECKED EVERY OTHER OIL CHANGE, AND I ROTATE THE TIRES EVERY OIL CHANGE, BUT THE TECHNICIAN ALWAYS SAYS HE SEES "A LITTLE FEATHERING" OF THE TIRES.

THE STRUTS ARE ORIGINAL.
I THINK THE STRUTS ARE THE PROBLEM.

QUESTION:

IF I REPLACE THE STRUTS, IS THE DAMAGE ALREADY DONE TO THE TIRES (DO I HAVE TO REPLACE TIRES WHEN I REPLACE STRUTS)?

THANKS
CHRIS GREENE