SCHEDULE 14A
                                 (Rule 14a-101)

                     INFORMATION REQUIRED IN PROXY STATEMENT
                            SCHEDULE 14A INFORMATION

                Proxy Statement Pursuant to Section 14(a) of the
                Securities Exchange Act of 1934 (Amendment No. )

Filed by the Registrant [X]
Filed by a Party other than the Registrant [ ]

Check the appropriate box:
[ ] Preliminary Proxy Statement      [ ] Confidential, For Use of the Commission
                                         Only (as permitted by Rule 14a-6(e)(2))
[ ] Definitive Proxy Statement
[X] Definitive Additional Materials
[ ] Soliciting Material Pursuant to Rule 14a-11(c) or Rule 14a-12
- --------------------------------------------------------------------------------
                            Eaton Vance Series Trust

                (Name of Registrant as Specified in Its Charter)

- --------------------------------------------------------------------------------
    (Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check the appropriate box):
[X] No fee required.
[ ] Fee computed on table below per Exchange Act Rules 14a-6(i) (1) and 0-11.

(1) Title of each class of securities to which transaction applies:
- --------------------------------------------------------------------------------

(2) Aggregate number of securities to which transaction applies:
- --------------------------------------------------------------------------------

(3) Per unit price or other underlying value of transaction computed pursuant to
Exchange  Act Rule  0-11  (set  forth the  amount  on which  the  filing  fee is
calculated and state how it was determined):
- --------------------------------------------------------------------------------

(4) Proposed maximum aggregate value of transaction:
- --------------------------------------------------------------------------------

(5) Total fee paid:
- --------------------------------------------------------------------------------
[ ] Fee paid previously with preliminary materials.
- --------------------------------------------------------------------------------

[ ] Check box if any part of the fee is offset as provided by Exchange  Act Rule
0-11(a)(2)  and  identify  the  filing  for  which the  offsetting  fee was paid
previously.  Identify the previous filing by registration  statement  number, or
the form or schedule and the date of its filing.

(1) Amount Previously Paid:
- --------------------------------------------------------------------------------

(2) Form, Schedule or Registration Statement no.:
- --------------------------------------------------------------------------------

(3) Filing Party:
- --------------------------------------------------------------------------------

(4) Date Filed:
- --------------------------------------------------------------------------------



                     EATON VANCE TAX-MANAGED GROWTH FUND 1.0

                            THE EATON VANCE BUILDING
                                255 STATE STREET
                           BOSTON, MASSACHUSETTS 02110


                                                May 13, 2003


Dear Shareholder:

     We recently mailed to you proxy  materials  relating to the Special Meeting
of Shareholders scheduled for June 6, 2003. YOUR VOTE FOR THIS IMPORTANT MEETING
HAS NOT YET BEEN RECEIVED.

     We  encourage  you to  utilize  one  of the  following  options  today  for
recording your vote promptly:

          1. VOTE BY  TELEPHONE.  You may cast your vote by telephone by calling
          the toll free number listed on the enclosed voting instruction form or
          proxy card.  Have the control number found on your voting  instruction
          form or proxy card ready when prompted.

          2.  VOTE  THROUGH  THE  INTERNET.  You may cast  your  vote  using the
          Internet by logging on to the Internet address located on the enclosed
          voting  instruction  form or proxy card and following the instructions
          on the website.

          3. VOTE BY MAIL. You may cast your vote by mail by signing, dating and
          mailing  the  enclosed  voting  instruction  form or proxy card in the
          postage-prepaid return envelope provided.

     For the reasons set forth in the proxy  materials  previously  delivered to
you, YOUR FUND TRUSTEES RECOMMEND THAT YOU VOTE IN FAVOR OF THE PROPOSAL.

     If you  require a copy of the  Fund's  Proxy  Statement,  please  contact a
service representative at 1-866-387-2378. If you have any questions about how to
vote or the  proposal to be voted on,  please call the Fund's  proxy  solicitor,
D.F. King & Co., Inc., toll free at 1-800-848-3155.


                   YOUR VOTE IS IMPORTANT. PLEASE VOTE TODAY.