UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                                  SCHEDULE 13G


                   Under the Securities Exchange Act of 1934

                         American Vanguard Corporation
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                                (Name of Issuer)


                                 Common Stock
--------------------------------------------------------------------------------
                         (Title of Class of Securities)


                                   030371108
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                                 (CUSIP Number)

                                    7/31/05
                      -----------------------------------
                     Date of Event Which Requires Reporting

          Check the appropriate box to designate the rule pursuant to
          which this Schedule is filed:

          [X]  Rule 13d-1(b)
          [ ]  Rule 13d-1(c)
          [ ]  Rule 13d-1(d)


*The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities,
and for any subsequent amendment containing information which would alter the
disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be
deemed to be "filed" for the purpose of Section 18 of the Securities Exchange
Act of 1934 ("Act") or otherwise subject to the liabilities of that section of
the Act but shall be subject to all other provisions of the Act (however, see
the Notes).





                               Page 1 of 5 pages

CUSIP No. 030371108                                            Page 2 of 5 Pages

1.       NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

                 St. Denis J. Villere & Company, L.L.C.
                 I.R.S. Identification No. 72-0343760 

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2.       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*         
                        (a)  /   /              (b)  / X / 

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3.       SEC USE ONLY

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4.       CITIZENSHIP OR PLACE OR ORGANIZATION                  
               Louisiana
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NUMBER OF        5.       SOLE VOTING POWER
                                                38,000
SHARES           ---------------------------------------------------------------

BENEFICIALLY     6.       SHARED VOTING POWER
                                                1,990,661 
OWNED BY         ---------------------------------------------------------------

EACH             7.       SOLE DISPOSITIVE POWER
                                                38,000
REPORTING        ---------------------------------------------------------------

PERSON           8.       SHARED DISPOSITIVE POWER
                                                1,990,661
WITH             ---------------------------------------------------------------

9.       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
              2,208,661 Shares 

--------------------------------------------------------------------------------
10.      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
         CERTAIN SHARES*                  
                N/A 

--------------------------------------------------------------------------------
11.      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9                  
                11.13% 

--------------------------------------------------------------------------------
12.      TYPE OF REPORTING PERSON*
                IA

--------------------------------------------------------------------------------
                    *SEE INSTRUCTION BEFORE FILLING OUT!





                               Page 2 of 5 pages

                                  SCHEDULE 13G

ITEM 1.

         This Schedule 13G relates to shares of the common stock (the "Shares")
of American Vanguard Corporation, a Delaware corporation (the "Issuer"), whose
principal executive offices are located at 4695 MacArthur Court, Newport Beach,
California, 92660.

ITEM 2.

         (a) - (c)        The person filing this Schedule 13G is St. Denis J.
Villere & Company, L.L.C., a Louisiana limited liability company ("Villere"), 
with its principal business office located at 210 Baronne Street, Suite 808,
New Orleans, Louisiana 70112-1727.

         (d)     Title of Class of Securities:  Common

         (e)     CUSIP Number:  030371108

ITEM 3.

         Villere is filing this Schedule 13G as an Investment Adviser registered
under Section 203 of the Investment Advisers Act of 1940.

ITEM 4.          Ownership.

         (a) - (c)        As of July 31, 2005, Villere was deemed to have or 
share voting or dispositive power over, and therefore to own beneficially, the 
number and percentage of Shares of the Issuer indicated below:



Number           Percentage of             Sole             Shared           Sole             Shared
of               Outstanding               Voting           Voting           Dispositive      Dispositive
Shares           Shares                    Power            Power            Power            Power       
------           -------------             ------          ---------         ------------     ----------- 
                                                                               
2,208,661        11.13%                    38,000          1,990,661         38,000           1,990,661






                               Page 3 of 5 pages



ITEM 5.          Ownership of Five Percent or Less of a Class.

                 Not Applicable

ITEM 6.          Ownership of More than Five Percent on Behalf of Another
                 Person.

                 Not Applicable

ITEM 7.          Identification and Classification of the Subsidiary Which
                 Acquired the Security Being Reported on By the Parent Holding
                 Company.

                 Not Applicable

ITEM 8.          Identification and Classification of Members of the Group.

                 Not Applicable

ITEM 9.          Notice of Dissolution of Group.

                 Not Applicable

ITEM 10.         Certification.

                 By signing below I certify that, to the best of my knowledge
and belief, the securities referred to above were acquired and held in the
ordinary course of business and were not acquired and are not held for the 
purpose of or with the effect of changing or influencing the control of the
issuer of the securities and were not acquired and are not held in connection
with or as a participant in any transaction having that purpose or effect.





                               Page 4 of 5 pages

                                  SIGNATURE

         After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.


Date:  August 10, 2005
       ----------------- 
                                        ST. DENIS J. VILLERE & COMPANY, L.L.C.



                                        By:  /s/ George G. Villere 
                                             ----------------------------
                                             George G. Villere 
                                             Member





                               Page 5 of 5 pages