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

                                  SCHEDULE 13G

                    Under the Securities Exchange Act of 1934
                               (Amendment No. 6)*


                          American Vanguard Corporation
                          -----------------------------
                                (Name of Issuer)

                     Common Stock, $0.10 Par Value per Share
                     ---------------------------------------
                         (Title of Class of Securities)

                                    030371108
                                    ---------
                                 (CUSIP Number)

                                December 31, 2005
                                -----------------
             (Date of Event Which Requires Filing of this Statement)

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

[ ] Rule 13d-1(b)

[X] 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).


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Schedule 13G/A

CUSIP No. 030371108

1. Names of Reporting Persons: Jay R. Harris
   I.R.S. Identification Nos. of above persons (entities only): Not Applicable

2. Check the Appropriate Box if a Member of a Group (See Instructions):

     (a) [ ]

     (b) [ ]

3. SEC Use Only


4. Citizenship or Place of Organization: U.S.

Number of         5.  Sole Voting Power:             888,065
Shares
Beneficially      6.  Shared Voting Power:           --0--
Owned by
Each              7.  Sole Dispositive Power:        945,485
Reporting
Person With       8.  Shared Dispositive Power:      704,644

9.  Aggregate Amount Beneficially Owned by Each Reporting Person: 1,650,129

10. Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See
Instructions): [ ]

11. Percent of Class Represented by Amount in Row (9): 9.01%

12. Type of Reporting Person (See Instructions): IN

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Item 1.

     (a)  The  name  of  the  issuer  is  American  Vanguard   Corporation  (the
"Corporation").

     (b) The Corporation's  executive office is located at 4695 MacArthur Court,
Newport Beach, California 92660.

Item 2.

     (a) The person filing this statement is Jay R. Harris.

     (b) Mr. Harris' residence is 130 East End Avenue, New York, NY 10028.

     (c) Mr. Harris is a United States citizen.

     (d) The security  (the  "Security")  is common  stock,  $0.10 par value per
share.

     (e) The CUSIP Number of the Security is 030371108.

Item 3.

     Not applicable.

Item 4.    Ownership.

     (a) Mr. Harris is the beneficial  owner of 1,650,129 shares of the Security
through the following:

     o his direct, personal ownership of shares of the Security;

     o his IRA;

     o his position as trustee for the Lily Harris Trust;

     o his investment  discretion  over the accounts of Ann Lozman,  her IRA and
her Roth IRA;

     o his investment discretion over the account of Emma Lozman;

     o his investment discretion over the account of Lesley Ochlis;

     o his investment discretion over the accounts of Lisa Eng and her IRA;

     o his investment  discretion  over the UGMA account of Samantha Eng and the
UGMA account of George Eng;

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     o his investment discretion over the account of the IRA of James Harris;

     o his position as President of The Jay and Sandra Harris Foundation;

     o his position as General Partner of One GT Associates; and

     o his position as President of Goldsmith & Harris  Incorporated  ("G&H"), a
broker-dealer registered under Section 15 of the Securities Exchange Act of 1934
and an investment adviser registered under the Investment  Advisers Act of 1940,
by virtue of G&H's investment  discretion over accounts of its clients that hold
704,644 shares of the Security.

     The 1,650,129  shares of the Security of which Mr. Harris is the beneficial
owner includes 14,520 shares of the Security into which options for the Security
held by Mr. Harris are  convertible  upon  exercise.  The  determination  of the
number  of shares  of the  Security  beneficially  owned by Mr.  Harris  and the
percentage  such  shares  represent  of  all of the  outstanding  shares  of the
Security  was made in  accordance  with Rule  13d-3(d)(1)  under the  Securities
Exchange Act of 1934.

     (b) The amount of shares of the Security  beneficially  owned by Mr. Harris
is 9.01% of the total outstanding shares of the Security.

     (c) (i) Mr.  Harris  has the sole  power to vote or to  direct  the vote of
888,065 shares of the Security.

         (ii) Not applicable.

         (iii) Mr.  Harris  has the sole  power to  dispose,  or to direct  the
     disposition, of 945,485 shares of the Security.

         (iv) Mr. Harris shares with G&H the power to dispose, or to direct the
     disposition, of 704,644 shares of the Security.

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.

     The clients of G&H, the Lily Harris Trust, Ann Lozman, her IRA and her Roth
IRA,  Emma Lozman,  Lesley  Ochlis,  Lisa Eng and her IRA,  Samantha  Eng's UGMA
account,  George Eng's UGMA account, the IRA of James Harris, The Jay and Sandra
Harris  Foundation  and One GT  Associates  may have the right to receive or the
power to direct the receipt of dividends from, or the proceeds from the sale of,
shares of the

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Security.  None of these  persons  has an  interest  in 5% or more of the  total
outstanding shares of the Security.

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

     See Exhibit A.

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 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.


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                                    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:  February 7, 2006

                                            /s/ Jay R. Harris
                                            -----------------
                                            Jay R. Harris





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