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                                                                   EXHIBIT 10.28

                               EXCHANGE AGREEMENT


     THIS EXCHANGE AGREEMENT (the "Agreement") is made as of June 14, 2002,
among Bayer Corporation, an Indiana corporation ("Bayer") with a place of
business at 8400 Hawthorne Road, Kansas City, MO 64120, and Bayer Advanced LLC,
a Delaware limited liability company ("Advanced" and together with Bayer, the
"Bayer Parties"), with its principal place of business at 1500 Urban Center
Parkway, Suite 350, Birmingham, Alabama 35242, and United Industries
Corporation, a Delaware corporation, with its principal place of business at
8825 Page Boulevard, St. Louis, Missouri 63114 (the "Company"). The Bayer
Parties and the Company are each individually referred to herein as a "Party",
and collectively, as the "Parties".

     The Bayer Parties wish to deliver to the Company two notes issued by
Pursell Industries, Inc. and its subsidiaries ("Pursell") on November 30, 2000
(a $10,000,000 note issued to Bayer and secured by certain personal property of
Pursell's (the "Secured Note"), and a $23,498,436 note, issued to Advanced (the
"Unsecured Note", and together with the Secured Note, the "Notes", both attached
as EXHIBIT A hereto) and the Company wishes to deliver to the Bayer Parties that
number and class of shares of common stock of the Company (the "Shares") as are
indicated on EXHIBIT B attached hereto. The Company and the Bayer Parties are
willing, on the terms and conditions contained in this Agreement, to exchange
the Notes for the Shares. Certain provisions of this Agreement (including
Sections 3, 4, 6, 8 and 9) are intended for the benefit of, and shall be
enforceable by, United Industries Holdings, L.L.C. ("Holdings") as if it were a
party hereto.

     Now therefore, in consideration of the premises hereof and the material
covenants contained herein, and other valuable consideration (including the
Service Agreement and the Supply Agreement), the receipt and sufficiency of
which are hereby acknowledged, the parties hereto hereby agree as follows:

     1. EXCHANGE.

     (a) In accordance with the Closing Agreement (as defined in Section 2
below), upon execution of this Agreement, the Company shall deliver to the Bayer
Parties the certificates representing the Shares, and the Bayer Parties shall
deliver to the Company the Notes, duly assigned to the Company.

     (b) In connection with the exchange, the Bayer Parties represent and
warrant to the Company that:

          (i) The Shares to be acquired by the Bayer Parties pursuant to this
     Agreement shall be acquired for the Bayer Parties own accounts and not with
     a view to, or intention of, distribution thereof in violation of the 1933
     Act, or any applicable state securities laws, and the Shares shall not be
     disposed of in contravention of the 1933 Act or any applicable state
     securities laws.

          (ii) The Bayer Parties are sophisticated in financial matters and are
     able to evaluate the risks and benefits of the investment in the Shares.

          (iii) The Bayer Parties are able to bear the economic risk of their



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     investment in the Shares for an indefinite period of time because the
     Shares have not been registered under the 1933 Act and, therefore, cannot
     be sold unless subsequently registered under the 1933 Act or an exemption
     from such registration is available.

          (iv) The Bayer Parties understand that the purchase of the Shares
     involves substantial risk and that their financial condition and
     investments are such that they are in a financial position to hold the
     Shares for an indefinite period of time and to bear the economic risk of,
     and withstand a complete loss of, their investment in such Shares. In
     addition, by virtue of their expertise, the advice available to them and
     previous investment experience, the Bayer Parties have extensive knowledge
     and experience in financial and business matters, investments, securities
     and private placements and the capability to evaluate the merits and risks
     of the transactions contemplated by this Agreement. The Bayer Parties
     represent that they are each individually sophisticated and an "accredited
     investor" as that term is defined in Regulation D promulgated under the
     1933 Act.

          (v) During the negotiation of the transactions contemplated herein,
     the Bayer Parties and their representatives have been given (i) access to
     corporate books, financial statements, records, contracts, documents, and
     other information concerning the Company and to its offices and facilities,
     (ii) an opportunity to ask questions of the Company's officers and
     employees concerning the Company's business, operations, financial
     condition, assets, liabilities and other relevant matters as they have
     deemed necessary or desirable, and (iii) such information as has been
     requested, in order to evaluate the merits and risks of the prospective
     investment contemplated herein.

          (vi) The Bayer Parties have all requisite corporate or limited
     liability company power and authority to enter into this Agreement and to
     consummate the transactions contemplated hereby. The execution and delivery
     of this Agreement, and the Joinder Agreement to the Stockholders Agreement
     (making the Bayer Parties parties thereto and Stockholders, as such term is
     used therein, thereunder), and the consummation of the transactions
     contemplated hereby and thereby have been duly authorized by all necessary
     corporate or limited liability company action on the part of the Bayer
     Parties, and no further action is required on the part of the Bayer Parties
     to authorize this Agreement and the transactions contemplated hereby. Each
     of this Agreement and the Joinder Agreement have been duly executed and
     delivered by the Bayer Parties and, assuming the due authorization,
     execution and delivery by the Company, constitute valid and binding
     obligations of the Bayer Parties, enforceable in accordance with their
     terms, except as such enforceability may be limited by the laws of general
     application relating to bankruptcy, insolvency and the relief of debtors
     and to rules of law governing specific performance, injunctive relief or
     other equitable remedies.

          (vii) Except as provided on SCHEDULE 1(b)(VII), the execution and
     delivery by the Bayer Parties of this Agreement and the First Amendment (as
     defined below) and the consummation of the transactions contemplated hereby
     and thereby will not conflict with or result in any violation of or default
     under (with or without notice or lapse of time, or both) or give rise to a
     right of termination, cancellation, modification or acceleration of any
     obligation or loss of any benefit under (i) any provision of the
     Certificate of Incorporation and Bylaws, or limited liability company
     agreement, as appropriate, of either of the Bayer Parties, (ii) any
     mortgage, indenture, lease, contract or other agreement or instrument,
     permit,

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     concession, franchise or license to which the Bayer Parties or any of its
     properties or assets is subject, or (iii) any judgment, order, decree,
     statute, law, ordinance, rule or regulation applicable to the Bayer Parties
     or its properties or assets.

          (viii) Except as may be required by any state "blue sky" laws or as
     described on SCHEDULE 1(b)(VIII) attached hereto, no authorization,
     consent, approval, license, qualification or formal exemption from, nor any
     filing, declaration or registration with, any court, governmental agency,
     regulatory authority or political subdivision thereof, any securities
     exchange or any other Person (including, without limitation, Pursell) is
     required in connection with the execution, delivery or performance by the
     Bayer Parties of this Agreement or the transactions contemplated hereby,
     except for any such authorizations, consents, approvals, licenses,
     qualifications, exemptions, filings, declarations and registrations as have
     been obtained or made, as the case may be, and which are in full force and
     effect and are not the subject of any pending or, to the Bayer Parties'
     knowledge, threatened attack by appeal or direct proceeding or otherwise.

          (ix) As of the date hereof, and after giving effect to the exchange
     contemplated hereby, (A) the unpaid principal amount of the Secured Note
     will be $10,000,000 and the accrued and unpaid interest as of June 7, 2002
     on the Secured Note will be $12,603; and (B) the unpaid principal amount of
     the Unsecured Note as of January 31, 2002 was $26,052,719. Pursuant to the
     terms of the Notes, if the Agency Agreement, dated as of December 1, 2000
     (the "Pursell Agency Agreement"), between Pursell and Advanced, is
     terminated by Advanced for any reason other than a failure by Pursell to
     achieve and satisfy certain key performance indicators, the principal
     amount of the Notes will automatically be reduced in accordance with the
     formula set forth in the Notes. It is a condition to Bayer's and Advanced's
     consummation of certain transactions provided for in the In-Store Service
     Agreement with the Company, dated as of the date hereof (the "Service
     Agreement") that Advanced terminate the Pursell Agency Agreement. As a
     result, the Company hereby acknowledges that the principal amount of the
     Notes will be reduced as described above in order for Bayer and Advanced to
     make certain provisions of the Service Agreement effective. In addition,
     the Company hereby acknowledges that it has recently performed due
     diligence with respect to the assets, businesses and financial condition of
     Pursell and is aware of the impact that Pursell's current financial
     condition could have on the value and collectibility of the Notes. The
     Secured Note is secured by a lien on certain assets of Pursell and certain
     of its affiliates, all as described in the Security Agreement, dated as of
     November 30, 2000, among Pursell, BFC Acquisition Corporation, and Vigoro
     Acquisition Corp., as debtors, and Bayer, as secured party, as amended by
     that certain letter agreement, dated as of December 13, 2001, between Bayer
     and the Company, relating to the release of liens (as amended, the
     "Security Agreement"), a copy of which is attached hereto as EXHIBIT C. The
     Security Agreement creates a valid security interest in favor of the Bayer
     Parties (and after due execution of the Assignment and Assumption Agreement
     (as defined in the Closing Agreement), in favor of the Company), in
     Pursell's rights in the collateral described in the Security Agreement (the
     "Collateral"), and the Bayer Parties have, and after giving effect to the
     Assignment and Assumption Agreement, the Company will acquire, a valid,
     fully perfected security interest in that portion of the Collateral that
     may be perfected by filing a financing statement in the jurisdictions set
     forth on EXHIBIT D hereto, and such security interest shall be free and
     clear of all liens, claims, encumbrances and other restrictions, except for
     those set forth in the Intercreditor Agreement and Debt Subordination
     Agreement, each as defined below.

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          (x) The Notes are legal, valid and binding obligations of Pursell,
     enforceable in accordance with their terms, and are in full force and
     effect, and, immediately after transfer by the Bayer Parties to the
     Company, the Notes will remain legal, valid and binding obligations of
     Pursell (subject to a writedown of principal under the circumstances
     described in (ix) above), enforceable in accordance with their terms, and
     in full force and effect on identical terms for the benefit of the Company
     following the consummation of the transactions contemplated hereby; no
     party is in breach or default under the Notes; no event has occurred which
     with notice or lapse of time would constitute a breach or default, or
     permit termination, modification, or acceleration, under the Notes; and no
     party has repudiated any provision of the Notes. The Bayer Parties own the
     Notes beneficially and of record, free and clear of all liens,
     encumbrances, security interests, voting agreements, voting trusts or other
     arrangements or restrictions (except for restrictions set forth in the
     Intercreditor Agreement, dated as of November 30, 2000 (the "Intercreditor
     Agreement") and the Debt Subordination Agreement, dated as of November 30,
     2000 (the "Debt Subordination Agreement")), and upon delivery of the Notes
     to the Company pursuant to clause (a) above, shall transfer to the Company
     good and valid title to the Notes, free and clear of all liens or
     encumbrances (except for restrictions set forth in the Intercreditor
     Agreement and the Debt Subordination Agreement).

     (c) In connection with the exchange, the Company represents and warrants to
the Bayer Parties that:

          (i) The Company is a corporation duly organized and validly existing
     under the laws of the State of Delaware and is qualified to do business in
     every jurisdiction in which its ownership of property or conduct of
     business requires it to qualify, except for such jurisdictions in which the
     failure to so qualify would not have and would not be reasonably expected
     to have a material adverse effect on its business, operations, assets or
     financial condition (excluding prospects) (a "Material Adverse Effect") of
     the Company. The Company has all requisite corporate power and authority
     and all material licenses, permits and authorizations to carry on its
     businesses as now conducted and presently proposed to be conducted.

          (ii) The Company has heretofore furnished the Bayer Parties with the
     consolidated balance sheets of the Company and its subsidiaries as of
     December 31, 2001 and 2000 and the related consolidated statements of
     operations, changes in stockholder's equity and cash flows for the periods
     then ended, audited by PricewaterhouseCoopers LLP (collectively, the
     "Audited Financial Statements") and the unaudited consolidated balance
     sheet of the Company as of March 31, 2002, and the related unaudited
     consolidated statements of operations, changes in stockholder's equity and
     cash flows for the three months then ended (the "Unaudited Financial
     Statements" and together with the Audited Financial Statements, the
     "Financial Statements"). Such Financial Statements including the footnotes
     thereto, except as indicated therein, have been prepared in accordance with
     generally accepted accounting principles applied on a consistent basis
     throughout the periods covered thereby, are consistent with the books and
     records of the Company, fairly present in all material respects the
     financial position of the Company and its subsidiaries and the results of
     their operations and cash flows at such dates and for such periods, except
     that the

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     Unaudited Financial Statements (including the Balance Sheet) do not contain
     footnotes and are subject to year-end adjustments.

          (iii) The Company has filed all forms, reports and documents with the
     Securities and Exchange Commission (the "Commission") required to be filed
     by it pursuant to the federal securities laws and the Commission rules and
     regulations thereunder, and all forms, reports and documents filed with the
     Commission by the Company (collectively, the "Commission Filings") have
     complied in all material respects with the applicable requirements of the
     Federal securities laws and the Commission rules and regulations
     promulgated thereunder. As of their respective dates, the Commission
     Filings did not contain any untrue statement of a material fact or omit to
     state a material fact required to be stated therein or necessary to make
     the statements therein, in light of the circumstances under which they were
     made, not misleading.

          (iv) Other than as previously disclosed to the Bayer Parties, since
     December 31, 2001, to the Company's knowledge, no event has occurred or
     circumstance exists that would reasonably be expected to cause a material
     adverse change in the business, operations, assets or financial condition
     (excluding prospects) of the Company and its subsidiaries taken as a whole
     not otherwise related to industry or economic conditions.

          (v) The Company has all requisite corporate power and authority to
     enter into this Agreement and to consummate the transactions contemplated
     hereby. The execution and delivery of this Agreement and the consummation
     of the transactions contemplated hereby have been duly authorized by all
     necessary corporate action on the part of the Company, and no further
     action is required on the part of the Company to authorize this Agreement
     and the transactions contemplated hereby. This Agreement has been duly
     executed and delivered by the Company and, assuming the due authorization,
     execution and delivery by the Bayer Parties, constitutes a valid and
     binding obligation of the Company, enforceable in accordance with its
     terms, except as such enforceability may be limited by the laws of general
     application relating to bankruptcy, insolvency and the relief of debtors
     and to rules of law governing specific performance, injunctive relief or
     other equitable remedies.

          (vi) The execution and delivery by the Company of this Agreement and
     the consummation of the transactions contemplated hereby will not conflict
     with or result in any violation of or default under (with or without notice
     or lapse of time, or both) or give rise to a right of termination,
     cancellation, modification or acceleration of any obligation or loss of any
     benefit under (i) any provision of the Certificate of Incorporation and
     Bylaws of the Company, (ii) any mortgage, indenture, lease, contract or
     other agreement or instrument, permit, concession, franchise or license to
     which the Company or any of its properties or assets is subject, or (iii)
     any judgment, order, decree, statute, law, ordinance, rule or regulation
     applicable to the Company or its properties or assets.

          (vii) Immediately following the consummation of the transactions
     contemplated by this Agreement, the authorized capital stock of the Company
     will consist of (i) 40,000 shares of Class A Preferred, of which 37,600
     shares shall be issued and outstanding; (ii) 43,600,000 shares of Class A
     Voting Common, of which 30,071,000 shares shall be issued and outstanding,
     (iii) 43,600,000 shares of Class B Non-Voting Common, of which 30,071,000
     shares shall be issued and outstanding, (iv) warrants to purchase 4,750,000

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     shares of Class A Voting Common and 4,750,000 shares of Class B Non-Voting
     Common and (v) options to purchase 2,745,750 shares of Class A Voting and
     2,745,750 shares of Class B Non-Voting Common. Each share of capital stock
     of the Company issued and outstanding as of the date hereof is duly
     authorized, validly issued, fully paid and nonassessable and, except with
     respect to the Stockholders Agreement, is free and clear of all preemptive
     rights, repurchase rights, and liens.

          (viii) Upon issuance by the Company to the Bayer Parties pursuant to
     this Agreement, the Shares shall be duly authorized, validly issued, fully
     paid and nonassessable and, except as otherwise provided in the
     Stockholders Agreement and this Agreement, free and clear of all
     encumbrances or liens. Except as set forth on SCHEDULE 1(c)(VIII) attached
     hereto, there are no binding contracts or agreements of the Company
     relating to the future sale or issuance of any equity securities (or
     securities convertible or exchangeable into equity securities) of the
     Company. None of the outstanding equity securities (or securities
     convertible or exchangeable into equity securities) of the Company were,
     and (assuming the accuracy of the Bayer Parties representations and
     warranties contained in this Agreement) upon issuance to the Bayer Parties
     hereunder the Shares will not be, issued in violation of the 1933 Act.

          (ix) Except as may be required by any state "blue sky" laws, and
     Regulation D of the 1933 Act, no authorization, consent, approval, license,
     qualification or formal exemption from, nor any filing, declaration or
     registration with, any court, governmental agency, regulatory authority or
     political subdivision thereof, any securities exchange or any other Person
     is required in connection with the execution, delivery or performance by
     the Company of this Agreement or the business of the Company, except for
     any such authorizations, consents, approvals, licenses, qualifications,
     exemptions, filings, declarations and registrations that have been obtained
     or made, as the case may be, and are in full force and effect and are not
     the subject of any pending or, to the Company's knowledge, threatened
     attack by appeal or direct proceeding or otherwise.

          (x) TAX RETURNS. The Company has filed, or caused to be filed, in a
     timely manner all tax returns, reports and declarations which are required
     to be filed by it. All information in such tax returns, reports and
     declarations is complete and accurate in all material respects. The Company
     has paid or caused to be paid all material Taxes (as defined below) due and
     payable or claimed due and payable in any assessment received by it, except
     Taxes the validity of which are being contested in good faith by
     appropriate proceedings diligently pursued and available to the Company and
     with respect to which adequate reserves have been set aside on its books.

          (xi) COMPLIANCE WITH LEGAL REQUIREMENTS. Except as set forth on
     SCHEDULE 1(c)(XI) attached hereto, the Company is in compliance with each
     Legal Requirement or Governmental Authorization that is applicable to it or
     to the conduct or operation of its business or the ownership or use of any
     of its assets, except for such non-compliance that would not reasonably be
     expected to have a Material Adverse Effect on the Company.

          (xii) LEGAL PROCEEDINGS; ORDERS. There is no present investigation by
     any Governmental Body pending, or to the best of the Company's knowledge
     threatened, against

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     or affecting the Company, its assets or business and there is no action,
     suit, proceeding, order, award, decision, injunction, judgment, ruling or
     claim by any Person pending, or to the best of the Company's knowledge
     threatened, against the Company or its assets or goodwill, or against or
     affecting any transactions contemplated by this Agreement, the First
     Amendment or the Service Agreement, which if adversely determined against
     the Company would reasonably be expected to result in a Material Adverse
     Effect on the Company.

          (xiii) CONTRACTS; NO DEFAULTS. The Company is not in default under, or
     in violation of any of the terms of, any material agreement, contract,
     instrument, lease or other commitment to which it is a party or by which it
     or any of its assets are bound, the default or violation of which would
     reasonably be expected to have a Material Adverse Effect.

     2. REPURCHASE OPTION.

     (a) In the event the Service Agreement terminates pursuant to the terms
thereof (the "TERMINATION"), the Shares (whether held by the Bayer Parties or
one or more of the Bayer Parties' transferees) shall be subject to repurchase by
the Company or its Designee (as defined below) pursuant to the terms and
conditions set forth in this Section 2 (the "REPURCHASE OPTION").

     (b) With respect to the Repurchase Option, the Company or its Designee
shall repurchase the Shares as follows: (i) the purchase price for the Multiple
Shares (as defined below) shall be the Multiple Price; (ii) the purchase price
for all other Shares shall be the lower of the Multiple Price or the Fixed Price
(the "OTHER SHARES"). For purposes of this Agreement, the term "MULTIPLE SHARES"
means that number of shares of capital stock of the Company equal to the number
of Shares held by the Bayer Parties at the time the Company or its Designee
exercises the Repurchase Option multiplied by a fraction, the numerator of which
is the number of Quarterly Installments (as defined in the Service Agreement)
made by the Bayer Parties to the Company as of the time that the Company or its
Designee exercises the Repurchase Option, and the denominator of which is 28. In
exercising its rights under this Section 2, the Company shall repurchase all of
the Shares in a single transaction.

     (c) The board of directors of the Company (the "BOARD") may elect for the
Company to purchase, or appoint a designee or designees (the "DESIGNEES") to
purchase, all of the Multiple Shares and all of the Other Shares by delivering
written notice (the "REPURCHASE NOTICE") to the holder or holders of the Shares
within 365 days after the Termination; provided that if the Termination occurs
in or at the end of the seventh year of the term of the Service Agreement, the
Repurchase Notice must be delivered by the seventh anniversary of the date of
the Service Agreement (or if such Termination occurs on the seventh anniversary
of the date of the Service Agreement, within 30 days thereafter). The Repurchase
Notice shall set forth the number of Multiple Shares and Other Shares to be
acquired from each holder of Shares, the aggregate consideration to be paid for
such Shares and the time and place for the closing of the transaction.

     (d) The closing of the purchase of the Shares pursuant to the Repurchase
Option shall take place on the date designated by the Company in the Repurchase
Notice, which date shall not be more than 60 days nor less than five days after
the delivery thereof. The Company and/or the Designees shall pay for the Shares
to be purchased pursuant to the Repurchase Option by delivery of a certified or
cashier's check or by a wire transfer of immediately available funds; provided
that the Company may pay the purchase price for such Shares by offsetting
amounts (on a dollar for dollar basis and without discount) outstanding under
any bona fide debts owed by the Bayer Parties

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or their permitted transferees to the Company or any affiliate thereof, it being
understood that the Company may select in its discretion the amounts, debts (or
payments) that will be offset pursuant to the foregoing (including, without
limitation, by offsetting on a dollar-for-dollar basis without discount the
payments contemplated by Section 3 of the Service Agreement). The purchasers of
Shares hereunder shall be entitled to receive customary representations and
warranties from the sellers regarding such sale of Shares (including
representations and warranties regarding good title to such Shares, free and
clear of any liens or encumbrances).

     (e) The right of the Company and the Designees to repurchase Other Shares
and Multiple Shares pursuant to this Section 2 shall terminate upon the
consummation of a Sale of the Company.

     (f) With respect to repurchases of Shares by the Company pursuant to this
Section 2, if within six months following the exercise of the Repurchase Option
(i) a Sale of the Company occurs or a definitive purchase or similar agreement
with respect to a Sale of the Company is entered into and subsequently
consummated during such six month period or during the thirty (30) days
immediately thereafter, and (ii) the market value of a share of common stock
(based upon the purchase price or liquidation proceeds per share of common
stock) exceeds the repurchase price of such share of common stock determined in
connection with the Repurchase Option, the Bayer Parties shall be entitled to
receive from the Company the benefit of such higher valuation for the common
stock sold under the Repurchase Option. The difference between (x) the amount
which the Bayer Parties would have received in such Sale of the Company assuming
the sale of all common stock purchased in the Repurchase Option at the per share
price therefor in connection with such transaction, and (y) the amount which the
Bayer Parties received from the sale of the common stock upon exercise of the
Repurchase Option, shall be paid by certified or cashier's check or wire
transfer of immediately available funds by the Company to the Bayer Parties, in
the event (x) exceeds (y), upon consummation of any such Sale of the Company.

     3. PUT RIGHT.

     (a) In the event that the Bayer Parties terminate the Service Agreement
pursuant to Section 8(a)(i) thereof as the result of an Uncured KPI Failure, as
such term is used therein and such Uncured KPI failure occurs during the first
thirty-six (36) months of the term of the Service Agreement (a "QUALIFYING BAYER
TERMINATION"), then within thirty (30) days of such termination, the Bayer
Parties shall have the right to put the Shares acquired herein to the Company
(the "PUT RIGHT") at the lesser of (A) the total dollar amount of the Quarterly
Installments of the Annual Payments (as defined in the Service Agreement)
received by the Company as of the date of such termination, or (B) the current
Multiple Price multiplied by the number of Performance Shares (the lesser of (A)
and (B), the "PUT PRICE"). The Put Price shall be paid to the Bayer Parties over
a period of time no longer than the period of time from the date hereof until
the date of the Qualifying Bayer Termination. All Non-Performance Shares shall
be returned to the Company in exchange for releasing the Bayer Parties from the
obligation to make any future Annual Payments under the Service Agreement (it
being acknowledged that this is the only circumstance under which the Annual
Payments are to be offset without United's consent).

     (b) Notwithstanding anything to the contrary contained in this Agreement,
all repurchases of Shares by the Company shall be subject to applicable
restrictions contained in the Delaware General Corporation Law and in the
Company's and its Subsidiaries debt and equity

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financing agreements. If any such restrictions prohibit the repurchase of Shares
hereunder which the Company is otherwise entitled or required to make, the time
periods provided in Sections 2 and 3 shall be suspended, and the Company may
make such repurchases as soon as it is permitted to do so under such
restrictions.

     4. STOCKHOLDERS AGREEMENT.

     (a) Simultaneously with the execution of this Agreement, the Bayer Parties
will become parties to, and be bound by the terms of, the Stockholders
Agreement, dated as of January 20, 1999, by and among the Company and its
stockholders (the "Stockholders Agreement") by executing the First Amendment to
the Stockholders Agreement in the form of EXHIBIT F attached hereto (the "First
Amendment"), and becoming a Stockholder as defined therein, provided that,
notwithstanding the terms of Section 7 of the Stockholders Agreement, no Bayer
Parties nor their assignees has any right to consent to approve any amendments
to or waivers of, any rights under the Stockholders Agreement other than as
expressly set forth in Section 4(b) below.

     (b) The Parties hereby acknowledge and agree that, in connection with any
amendment to or waiver of any rights under the Stockholders Agreement, the
Stockholder Shares (as defined in the Stockholders Agreement) held by the Bayer
Parties or their assignees shall automatically be voted (without any action on
the part of the Bayer Parties or their assignees) on a pro rata basis in
accordance with any vote taken by the holders of a majority of Stockholder
Shares (other than the Bayer Parties and their assignees and Holdings) pursuant
to Section 7 of the Stockholder Agreement and that the Bayer Parties and their
assignees shall be bound by any amendment or waiver of the Stockholders
Agreement approved by such holders of Stockholder Shares; PROVIDED that without
the prior written consent of the Bayer Parties or their assignees, no
modification, amendment or waiver shall be effective against the Bayer Parties
or their assignees (i) if it adversely affects in any material respect the
rights or obligations of the Bayer Parties or their assignees under the
Stockholders Agreement in a manner different than the other holders of
Stockholder Shares party thereto (other than Holdings) or (ii) if it would
require an additional financial contribution to the Company. The Bayer Parties
hereby irrevocably appoint the general counsel and the chief financial officer
of the Company, or any one of them acting in the absence of the other, as
attorneys-in-fact, with full power of substitution, for and in the name of the
Bayer Parties solely for the purpose of voting the Shares on behalf of the Bayer
Parties in any vote taken by the holders of Stockholder Shares (other than
Holdings) and executing any consents, waivers or amendments of the Stockholder's
Agreement in the name and on behalf of the Bayer Parties for the purpose of
implementing this Section 4 and for no other purpose.

     (c) In the event the Board of Directors of the Company revokes its consent
to the transfer of Stockholder Shares held by the Bayer Parties or their
affiliates to any other affiliate of the Bayer Parties, such revocation will be
deemed a breach of this Agreement.

     5. ADDITIONAL RESTRICTIONS ON TRANSFER.

     (a) In addition to any legend required by the Stockholders Agreement, the
certificates representing the Shares shall bear the following legend: "THE
SECURITIES REPRESENTED BY THIS CERTIFICATE WERE ORIGINALLY ISSUED ON JUNE 14,
2002, HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE
"ACT"), AND MAY NOT BE SOLD OR TRANSFERRED IN THE ABSENCE OF AN EFFECTIVE
REGISTRATION STATEMENT UNDER THE ACT OR AN EXEMPTION FROM

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REGISTRATION THEREUNDER. THE SECURITIES REPRESENTED BY THIS CERTIFICATE ARE ALSO
SUBJECT TO ADDITIONAL RESTRICTIONS ON TRANSFER, CERTAIN REPURCHASE OPTIONS AND
CERTAIN OTHER AGREEMENTS SET FORTH IN AN EXCHANGE AGREEMENT AMONG THE COMPANY,
BAYER CORPORATION, AND BAYER ADVANCED LLC, DATED AS OF JUNE 14, 2002, AS
AMENDED AND MODIFIED FROM TIME TO TIME. A COPY OF SUCH AGREEMENT MAY BE OBTAINED
BY THE HOLDER HEREOF AT THE COMPANY'S PRINCIPAL PLACE OF BUSINESS WITHOUT
CHARGE."

     (b) To the extent a transfer of Shares is permitted by the Stockholders
Agreement, prior to transferring any Shares, the transferring holder of Shares
shall cause the prospective transferee to be bound by this Agreement and the
Stockholders Agreement and to execute and deliver to the Company and the other
parties hereto or thereto counterparts to this Agreement and the Stockholders
Agreement, or a joinder agreement thereto.

     6. RIGHTS TO PARTICIPATE IN ISSUANCES OF COMMON STOCK.

     (a) If the Company authorizes the issuance or sale of any common stock of
the Company (or any securities convertible into, exercisable or exchangeable
for, any common stock of the Company), other than an Exempt Issuance (as defined
below), at less than the fair market value (as determined by the Company's board
of directors in its sole and absolute discretion) the Company will first offer
to sell to the Bayer Parties, a portion of the common stock to be issued equal
to (i) the number of shares of common stock to be issued MULTIPLIED BY (ii) the
quotient obtained by dividing (A) the number of shares of common stock currently
held by the Bayer Parties BY (B) the total number of shares of Company common
stock then outstanding on a fully-diluted basis (assuming the exercise of all
outstanding options and warrants at the time of any such authorization of an
issuance or sale), PROVIDED HOWEVER, that should the Company authorize the
issuance or sale of any common stock of the Company in conjunction with any
other security (either as a single strip of securities or in combination with
other securities of the Company), the Bayer Parties must purchase such strip or
all such securities offered in any such issuance or sale in order to exercise
the rights granted in this Section 6.

     (b) In order to exercise its purchase rights hereunder, the Bayer Parties
must, within 15 days after receipt of notice from the Company (or such shorter
period as may be specified by the holders of a majority of the Company's common
stock, but in no event less than 3 days) detailing the common stock, strip and
any other securities being offered as a part of the anticipated issuance or sale
of common stock, the purchase price thereof, the payment terms and the Bayer
Parties' percentage allotment, deliver a written notice to the Company
describing the Bayer Parties' election hereunder. As a condition to exercising
its rights under this Section 6, the Bayer Parties agree to take all necessary
or desirable actions in connection with the consummation of the proposed
issuance as requested by the Company's board of directors, including the
execution of all agreements, documents and instruments in connection therewith
in the form presented by the Company's board of directors to the extent that all
Persons participating in the equity financing are signing such documents.

     (c) Upon the expiration of the offering period described above, the Company
will be entitled to sell the shares of common stock (and any other securities
being offered in conjunction or simultaneously therewith) which the Bayer
Parties have not elected to purchase during the 180 days

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following such expiration, at a price not less and on terms no more favorable to
the purchasers thereof than that offered to the Bayer Parties. Any shares of
Company common stock sold after the expiration of such 180 day period must be
reoffered to the Bayer Parties pursuant to the terms of this paragraph.

     (d) The rights of the Bayer Parties under this Section 6 shall terminate
upon the consummation of the first to occur of (x) a Qualified Public Offering
and (y) a Sale of the Company.

     7. DEFINITIONS.

     "1933 ACT" means the Securities Act of 1933, as amended from time to time.

     "CLOSING AGREEMENT" means that certain Closing Agreement, dated as of June
7, 2002, by and among the Company and the Bayer Parties.

     "EBITDA" means, with respect to any period, the sum of (a) net income of
the Company for such period, PLUS (b) the amount of the provisions for federal
and state taxes (excluding payroll, sales and use taxes) reflected in the net
income for the Company for such period, PLUS (c) the amount of interest expense
for indebtedness for borrowed money reflected in the net income for the Company
for such period, PLUS (d) the amount of depreciation reflected in the net income
for the Company for such period, PLUS (e) the amount of amortization reflected
in the net income for the Company for such period, in each case as reflected in
the Company's financial statements for such period prepared in accordance with
generally accepted accounting principles consistently applied. EBITDA for the
Company for fiscal year 2001 was $58,200,000, as represented in the Company's
Form 10-K for the fiscal year ended December 31, 2001.

     "EXEMPT ISSUANCE" means any issuance (i) of securities upon conversion or
exercise of, or in exchange for, any securities of the Company or any options or
other rights to acquire securities of the Company, in accordance with the terms
thereof, (ii) pursuant to the terms of any option plan, stock purchase plan, or
other incentive equity arrangements approved by the Board of Directors of the
Company (the "Board"), such issuances not to exceed in the aggregate in any
calendar year 20% of the number of the then outstanding shares of common stock
of the Company on a fully-diluted basis, (iii) of the Company's securities as
consideration for the acquisition of another company or business approved by the
Board, (iv) as a pro rata distribution with respect to the Company's common
stock, (v) pursuant to any securities split, securities dividend,
recapitalization or reorganization, (vi) of securities issued to a lender in
connection with its loan to the Company or any of its Subsidiaries, or (vii) of
securities to a strategic partner or other business relation approved by the
Board as such.

     "FIXED PRICE" means the price listed on EXHIBIT G attached hereto which
corresponds to the year of the term of the Service Agreement in which the
Repurchase Option is exercised.

     "GOVERNMENTAL AUTHORIZATION" means any approval, consent, license, permit,
waiver or other authorization issued, granted, given or otherwise made available
by or under the authority of any Governmental Body or pursuant to any Legal
Requirement.

     "GOVERNMENTAL BODY" means any: (a) nation, state, county, city, town,
village, district, or other jurisdiction of any nature; (b) federal, state,
local, municipal, foreign or other government; (c) governmental or
quasi-governmental authority of any nature (including any

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<PAGE>

governmental agency, branch, department, official or entity and any court or
other tribunal); (d) multi-national organization or body; or (e) body
exercising, or entitled to exercise, any administrative, executive, judicial,
legislative, police, regulatory, or taxing authority or power of any nature.

     "INDEBTEDNESS" means at a particular time, without duplication, (i) any
liabilities for borrowed money or issued in substitution for or exchange of
indebtedness for borrowed money, (ii) any liabilities evidenced by any note,
bond, debenture or other debt security, (iii) any liabilities for the deferred
purchase price of property or services with respect to which a Person is liable,
contingently or otherwise, as obligor or otherwise, including any liability
(whether earn-outs, indemnity payments, non-compete payments, consulting
payments or other similar payments that may be payable as a result of or in
connection with any acquisition of, or investments in, another person (other
than trade payables and other current liabilities incurred in the ordinary
course of business which are not more than six months past due), (iv) any
liabilities guaranteed in any manner by a Person (including guarantees in the
form of an agreement to repurchase or reimburse), (v) any liabilities under
capitalized leases with respect to which a Person is liable, contingently or
otherwise, as obligor, guarantor or otherwise, or with respect to which
obligations a Person assures a creditor against loss, (vi) any liabilities
secured by a lien or security interest on a Person's assets and (vii) any
unsatisfied liabilities for "withdrawal liability" to a "multiemployer plan" as
such terms are defined under ERISA.

     "LEGAL REQUIREMENT" means any material federal, state, local, municipal,
foreign, international, multinational, or other administrative order,
constitution, law, ordinance, principle of common law, regulation, rule, statute
or treaty.

     "MULTIPLE PRICE" means the quotient of (I)(A) the product of (x) the
EBITDA of the Company during the twelve months immediately prior to date of
the exercise of the Repurchase Right or the Put Right, less any EBITDA
generated during the period from either the Service Agreement or any other
service agreement between the Parties that terminates (including the Annual
Payment as such term is defined in the In-Store Service Agreement),
multiplied by (y) [* *], minus (B) Indebtedness and the greater of the
redemption value or liquidation value of the Company's preferred stock plus
cash, plus (C) the value of any depreciation tax benefits, determined by
extending the assumption of a 6% growth in pre-tax income through the period
of the relevant depreciation tax benefits, discounted at an annual rate of
10% as illustrated on EXHIBIT E attached hereto, DIVIDED by (II) the total
number of shares of Company common stock determined on a fully-diluted, as if
converted, basis.

     "NON-PERFORMANCE SHARES" means that number of shares listed on EXHIBIT B
attached hereto, minus the total number of Performance Shares.

     "PERFORMANCE SHARES" means that number of shares arrived at by dividing the
total number of Quarterly Installments of the Annual Payments under the Service
Agreement received as of the date of any Qualifying Bayer Termination by 28, and
multiplying the result by the total number of shares listed on EXHIBIT B
attached hereto.

     "PERSON" means an individual, a partnership, a corporation, a limited
liability company, an association, a joint stock company, a trust, a joint
venture, an unincorporated organization and a governmental entity or any
department, agency or political subdivision thereof.

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     "PUBLIC SALE" means any sale pursuant to a registered public offering under
the 1933 Act or any sale to the public pursuant to Rule 144 promulgated under
the 1933 Act effected through a broker, dealer or market maker.

     "QUALIFIED PUBLIC OFFERING" means the sale, in an underwritten public
offering registered under the 1933 Act, of shares of the Company's common stock
with net proceeds to the Company in excess of $25 million.

     "SALE OF THE COMPANY" has the meaning set forth in the Stockholders
Agreement.

     "SHARES" shall continue to be Shares in the hands of any holder other than
the Bayer Parties (except for the Company and Holdings and except for
transferees in a Public Sale), and except as otherwise provided herein, each
such other holder of Shares shall succeed to all rights and obligations
attributable to the Bayer Parties as a holder of Shares hereunder. Shares shall
also include shares of the Company's capital stock issued with respect to Shares
by way of a stock split, stock dividend or other recapitalization.

     "STOCKHOLDER SHARES" has the meaning set forth in the Stockholders
Agreement.

     "SUBSIDIARY" means any Person of which the Company owns securities having a
majority of the ordinary voting power in electing the board of directors
directly or through one or more subsidiaries.

     "SUPPLY AGREEMENT" means that certain Supply Agreement, dated on even date
herewith, by and among the Company and the Bayer Parties.

     "TAXES" means any tax (including any income tax, capital gains tax,
value-added tax, sales tax, property tax, gift tax, or estate tax), levy,
assessment, tariff, duty (including any customs duty), deficiency, or other fee,
and any related charge or amount (including any fine, penalty, interest, or
addition to tax), imposed, assessed, or collected by or under the authority of
any Governmental Body, or payable pursuant to any tax-sharing agreement or any
other contract relating to the sharing or payment of any such tax, levy,
assessment, tariff, duty, deficiency, or fee.

     8. NOTICES. Any notice provided for in this Agreement must be in writing
and must be either personally delivered, mailed by first class mail (postage
prepaid and return receipt requested) or sent by reputable overnight courier
service (charges prepaid) to the recipient at the address below indicated:

                  To the Company:

                  United Industries Corporation
                  8825 Page Boulevard
                  St. Louis, Missouri 63114
                  Attention: President
                  Facsimile: (314) 253-5941


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                  With copies to:

                  Kirkland & Ellis
                  200 East Randolph Drive
                  Chicago, IL 60601
                  Attention: William S. Kirsch, P.C.
                  Facsimile: (312) 861-2200

                  To the Bayer Parties:
                  Bayer Corporation
                  8400 Hawthorn Road
                  Kansas City, Missouri 64120
                  Attention: General Counsel
                  Facsimile: 816-242-2739

                  With copies to:

                  Richards, Layton & Finger P.A.
                  One Rodney Square
                  Wilmington, DE 19801
                  Attn: William A. Yemc

                  To Holdings:

                  UIC Holdings, L.L.C.
                  75 State Street
                  Boston, MA 02109
                  Attention: Chuck Brizius


or such other address or to the attention of such other person as the recipient
party shall have specified by prior written notice to the sending party. Any
notice under this Agreement shall be deemed to have been given when so delivered
or sent or, if mailed, five days after deposit in the U.S. mail.

     9. GENERAL PROVISIONS.

     (a) TRANSFERS IN VIOLATION OF AGREEMENT. Any Transfer (as such term is used
in the Stockholders Agreement) or attempted Transfer of any Shares in violation
of any provision of this Agreement or the Stockholders Agreement shall be void,
and the Company shall not record such Transfer on its books or treat any
purported transferee of such Shares as the owner of such stock for any purpose,
it being understood that the Bayer Parties may assign the Shares and this
Agreement to an affiliate so long as the Bayer Parties provide prior notice
thereof and such affiliate agrees to be bound to the terms of this Agreement as
if a party hereto.

     (b) SURVIVAL OF REPRESENTATIONS AND WARRANTIES. The representations and
warranties set forth in this Agreement and in the other agreements contemplated
hereby shall survive


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<PAGE>

the closing of the transactions contemplated herein for one year with respect to
any intentional breach thereof; otherwise no representation or warranty shall
survive the closing. In making their determination to proceed with the
transactions contemplated by this Agreement, the Bayer Parties have relied on
the results of their own independent investigation and verification and the
representations and warranties expressly and specifically set forth in this
Agreement, including the Schedules and Exhibits attached hereto.

     (c) INDEMNIFICATION. Each of (i) the Company and (ii) the Bayer Parties
shall defend, protect, indemnify and hold harmless the other party and each of
their respective officers, directors, employees and agents (collectively, the
"Indemnitees") from and against any and all actions, causes of action, suits,
claims, losses, costs, penalties, fees, liabilities and damages, and expenses
incurred in connection therewith (including reasonable attorneys fees) directly
caused by the other party's intentional breach of a representation or warranty
set forth in this Agreement.

     (d) SEVERABILITY. Whenever possible, each provision of this Agreement shall
be interpreted in such manner as to be effective and valid under applicable law,
but if any provision of this Agreement is held to be invalid, illegal or
unenforceable in any respect under any applicable law or rule in any
jurisdiction, such invalidity, illegality or unenforceability shall not affect
any other provision or any other jurisdiction, but this Agreement shall be
reformed, construed and enforced in such jurisdiction as if such invalid,
illegal or unenforceable provision had never been contained herein.

     (e) COMPLETE AGREEMENT. This Agreement, those documents expressly referred
to herein and other documents of even date herewith embody the complete
agreement and understanding among the parties and supersede and preempt any
prior understandings, agreements or representations by or among the Parties,
written or oral, which may have related to the subject matter hereof in any way.

     (f) COUNTERPARTS. This Agreement may be executed in separate counterparts,
each of which is deemed to be an original and all of which taken together
constitute one and the same agreement.

     (g) SUCCESSORS AND ASSIGNS. Except as otherwise provided herein, this
Agreement shall bind and inure to the benefit of and be enforceable by the Bayer
Parties, the Company, Holdings and their respective successors and assigns
(including subsequent holders of Shares); provided that the rights and
obligations of the Bayer Parties under this Agreement shall not be assignable
except in connection with a permitted transfer of Shares hereunder or as
otherwise permitted under Section 9(a) hereof.

     (h) CHOICE OF LAW. The corporate law of the State of Delaware shall govern
all questions concerning the relative rights of the Company and its
stockholders. All other questions concerning the construction, validity,
enforcement and interpretation of this Agreement and the exhibits hereto shall
be governed by the internal law, and not the conflicts of laws principles, of
the State of Delaware.

     (i) ARBITRATION. To the fullest extent permitted by applicable law, any
controversy or claim arising out of or relating to this Agreement, or any breach
hereof, shall be settled by arbitration in accordance with and to the extent
permitted by the Uniform Arbitration Act (10 DEL. C., Section 5701, ET. SEQ.)
and, to the extent not inconsistent therewith, the Commercial


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Arbitration Rules of the American Arbitration Association ("AAA"), as amended
and in effect on the date that demand for arbitration is filed with the AAA. Any
party hereto may commence an arbitration proceeding in respect of such claim or
controversy by delivering an appropriate arbitration request to the AAA with a
copy to the other party. All disputes submitted to arbitration under this
Section 9(i) shall be finally resolved by a panel of three arbitrators. Each
party to the arbitration shall select one (1) arbitrator. The third arbitrator,
who will act as chairman of the arbitration panel, shall be jointly selected by
the two arbitrators selected by the parties. If the two arbitrators selected by
the parties cannot agree on the selection of the third arbitrator within seven
(7) days of the date the identity of the second to be selected arbitrator was
communicated to the first to be selected arbitrator, the third arbitrator will
be selected by the AAA. The arbitrators' ruling shall be binding and conclusive
upon the parties to the arbitration to the fullest extent permitted by law. Any
arbitration shall occur in St. Louis, Missouri or in any other location mutually
agreed to by the parties, and judgment upon the award rendered may be entered in
any court having jurisdiction thereof. The arbitrators shall be governed by and
shall apply the substantive law of the State of Delaware in making their award.
The expenses of the arbitration shall be borne equally by the parties to the
arbitration, provided that each party shall pay for and bear the cost of his own
experts, evidence and legal counsel.

     (j) REMEDIES. The Company and the Bayer Parties shall be entitled to
enforce their rights under this Agreement specifically by reason of any breach
of this Agreement and to exercise all other rights existing in their favor. The
parties hereto agree and acknowledge that money damages may not, in all
circumstances, be an adequate remedy for any breach of the provisions of this
Agreement and that the Company and the Bayer Parties may, in their sole
discretion, apply to any court of competent jurisdiction for specific
performance and/or injunctive relief (without posting a bond or other security)
in order to enforce or prevent any violation of the provisions of this
Agreement.

     (k) AMENDMENT AND WAIVER. The provisions of this Agreement may be amended
and waived only with the prior written consent of the Company, Bayer Parties and
Holdings.

     (l) THIRD-PARTY BENEFICIARIES. Certain provisions of this Agreement are
entered into for the benefit of and shall be enforceable by Holdings as provided
herein.

     (m) BUSINESS DAYS. If any time period for giving notice or taking action
hereunder expires on a day which is a Saturday, Sunday or legal holiday in the
state in which the Company's chief executive's office is located, the time
period shall be automatically extended to the business day immediately following
such Saturday, Sunday or holiday.


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     IN WITNESS WHEREOF, the parties hereto have executed this Agreement on the
date first written above.

                          UNITED INDUSTRIES CORPORATION

                          By: /s/ Robert L. Caulk
                          Its: Chairman and CEO

                          BAYER CORPORATION

                          By:  /s/ Emil Lansu
                          Its: EVP and President, Agriculture Division

                          BAYER ADVANCED LLC

                          By:  /s/ Emil Lansu
                          Its: Chairman of the Board

Accepted and Agreed:

UIC HOLDINGS, L.L.C.

By: /s/ Scott A. Schoen

Its:
    --------------------------------------



                    SIGNATURE PAGE TO THE EXCHANGE AGREEMENT


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                           SCHEDULE AND EXHIBIT INDEX

SCHEDULES:

Schedule 1(b)(vii)                  Conflicts

Schedule 1(b)(viii)                 Consents

Schedule 1(c)(viii)                 Contracts to Issue Stock

Schedule 1(c)(xi)                   Compliance with Laws

EXHIBITS:

Exhibit A                           Notes

Exhibit B                           Shares

Exhibit C                           Security Agreement

Exhibit D                           Jurisdictions

Exhibit E                           Tax Shield Model

Exhibit F                           First Amendment to the Stockholder Agreement

Exhibit G                           Fixed Price


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