--------------------------------------------------------------------------------
SEC 1746  Potential  persons who are to respond to the collection of information
contained  in this form  (2-98)  are not  required  to  respond  unless the form
displays a currently valid OMB control number.
--------------------------------------------------------------------------------

                                                       -------------------------
                                                       OMB APPROVAL
                                                       -------------------------
                                                       OMB NUMBER: 3235-0145
                                                       -------------------------
                                                       EXPIRES: OCTOBER 31, 2002
                                                       -------------------------
                                                       ESTIMATED AVERAGE BURDEN
                                                       HOURS PER RESPONSE...14.9
                                                       -------------------------

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

                                  SCHEDULE 13D
                        UNDER THE SECURITIES ACT OF 1934
                              (AMENDMENT NO. ___)*

                             U.S. HOME & GARDEN INC.
--------------------------------------------------------------------------------
                                (NAME OF ISSUER)


                          COMMON STOCK, $.001 PAR VALUE
--------------------------------------------------------------------------------
                         (TITLE OF CLASS OF SECURITIES)

                                   902939 10 7
--------------------------------------------------------------------------------
                                 (CUSIP NUMBER)

                                Ethan Seer, Esq.
                                 Blank Rome LLP
                              405 Lexington Avenue
                            New York, New York 10174
                                 (212) 885-5000
--------------------------------------------------------------------------------
                  (NAME, ADDRESS AND TELEPHONE NUMBER OF PERSON
                AUTHORIZED TO RECEIVE NOTICE AND COMMUNICATIONS)

                                 March 18, 2004
--------------------------------------------------------------------------------
             (DATE OF EVENT WHICH REQUIRES FILING OF THIS STATEMENT)

IF THE FILING PERSON HAS PREVIOUSLY  FILED A STATEMENT ON SCHEDULE 13G TO REPORT
THE  ACQUISITION  THAT IS THE SUBJECT OF THIS  SCHEDULE  13D, AND IS FILING THIS
SCHEDULE BECAUSE OF SS.SS.240.13D-1(E,  240.13D-1(F) OR 240.13D-1(G),  CHECK THE
FOLLOWING BOX |_|.

NOTE:  SCHEDULES  FILED IN PAPER FORMAT SHALL INCLUDE A SIGNED ORIGINAL AND FIVE
COPIES OF THE  SCHEDULE,  INCLUDING  ALL EXHIBITS.  SEE  SS.240.13D-7  FOR OTHER
PARTIES TO WHOM COPIES ARE TO BE SENT.

* 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
DISCLOSURES PROVIDED IN A PRIOR COVER PAGE.

THE INFORMATION REQUIRED ON 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).




CUSIP NO. 902939 10 7
          -----------

--------------------------------------------------------------------------------
               1.    NAMES OF REPORTING  PERSONS.  I.R.S.  IDENTIFICATION NOS.
                     OF ABOVE PERSONS  (ENTITIES  ONLY).
                     Stephen W. McCahon 563-33-0126
--------------------------------------------------------------------------------
               2.    CHECK  THE  APPROPRIATE  BOX IF A MEMBER  OF A GROUP (SEE
                     INSTRUCTIONS)
                     (A) |_|
                     (B) |_|
--------------------------------------------------------------------------------
               3.    SEC USE ONLY
--------------------------------------------------------------------------------
               4.    SOURCE OF FUNDS (SEE INSTRUCTIONS)
                     oo
--------------------------------------------------------------------------------
               5.    CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                     PURSUANT TO ITEMS 2(D) or 2(E)       |_|
--------------------------------------------------------------------------------
               6.    CITIZENSHIP OR PLACE OF ORGANIZATION
                     United States
--------------------------------------------------------------------------------
NUMBER OF                   7. SOLE VOTING POWER
SHARES                         6,227,266
                            ----------------------------------------------------
BENEFICIALLY                8. SHARED VOTING POWER
OWNED BY                       -
                            ----------------------------------------------------
EACH                        9. SOLE DISPOSITIVE POWER
REPORTING                      6,227,266
                            ----------------------------------------------------
PERSON WITH                10. SHARED DISPOSITIVE POWER
                               -
--------------------------------------------------------------------------------
             11.     AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
                     PERSON
                     6,227,266
--------------------------------------------------------------------------------
             12.     CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
                     SHARES (SEE INSTRUCTIONS) |_|
--------------------------------------------------------------------------------
             13.     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
                     9.2%
--------------------------------------------------------------------------------
             14.     TYPE OF REPORTING PERSON*
                     IN
--------------------------------------------------------------------------------








Item 1.  Security and Issuer.

      This  statement  relates to the Common  Stock,  par value  $.001 per share
("Common Stock"), issued by U.S. Home & Garden Inc., a Delaware corporation (the
"Company"), whose principal executive offices are located at 3590 East Columbia,
Tucson, Arizona 85714.

Item 2.  Identity and Background.

      This  statement is filed by Stephen W. McCahon (the  "Reporting  Person").
The address of the  Reporting  Person is 9401 E. Placita Lila,  Tucson,  Arizona
85749. The Reporting Person is a United States citizen.  The Reporting Person is
the Vice President of Engineering of the Company.

      The  Reporting  Person  has not,  during  the  last  five  years  (i) been
convicted in a criminal  proceeding  (excluding  traffic  violations  or similar
misdemeanors),  or (ii)  been a party to a civil  proceeding  of a  judicial  or
administrative body of competent jurisdiction and as a result of such proceeding
was or is  subject  to a  judgment,  decree  or  final  order  enjoining  future
violations  of, or prohibiting  or mandating  activities  subject to, federal or
state securities laws or finding any violations with respect to such laws.

Item 3.  Source and Amount of Funds or other Consideration.

      All of the shares of Common Stock reported in Item 5 as beneficially owned
by the Reporting  Person were  acquired by the Reporting  Person in exchange for
195 shares of  Ionatron  ("Ionatron")  Common  Stock,  par value $.01 per share,
owned by the Reporting  Person,  pursuant to the terms of the merger of Ionatron
Acquisition  Corp.,  a wholly owned  subsidiary  of the  Company,  with and into
Ionatron (the "Merger"), which was consummated on March 18, 2004.

Item 4.  Purpose of Transaction.

      The shares reported in Item 3 herein were acquired by the Reporting Person
for investment purposes. The Reporting Person may make purchases of Common Stock
from time to time and may  dispose of any or all of the  shares of Common  Stock
beneficially  owned by him (to the  extent he has  dispositive  power  over such
shares) at any time. The Reporting Person has no plans or proposals which relate
to, or could result in any of the matters  referred to in Paragraphs (b) through
(j) of Item 4 of Schedule 13D.

Item 5.  Interest in Securities of the Issuer.

      (a)-(b) According to the Company there were 67,798,339  outstanding shares
of Common Stock on March 18, 2004.  Immediately  after the  consummation  of the
Merger, the Reporting Person beneficially owned 6,227,266 shares of Common Stock
of the Company which comprises 9.2% of the issued and outstanding  Common Stock.
All such shares are directly owned by the Reporting Person.

      (c)  In  connection  with  the  Merger,   the  Reporting  Person  acquired
beneficial ownership of 6,227,266 shares of Common Stock in exchange for the 195
shares of common stock of Ionatron  owned by the  Reporting  Person  immediately
prior to the Merger.



      (d) The Reporting  Person  affirms that no person other than the Reporting
Person  has the  right to  receive,  or the  power to  direct  the  receipt  of,
dividends  from, or the proceeds from the sale of, the Common Stock owned by the
Reporting Person.

Item 6.  Contracts, Arrangements, Understandings or Relationships with Respect
         to Securities of the Issuer.

      There are no contracts, arrangements, understandings or relationships with
the Reporting  Person or any other person with respect to the  securities of the
Company,  including  but  not  limited  to  transfer  or  voting  of  any  other
securities,  finders' fees, joint ventures, loan or option arrangements, puts or
calls,  guaranties  of  profits,  divisions  of profits or loss or the giving or
withholding of proxies.


Item 7.  Materials to be filed as Exhibits.

      Amended and Restated Plan and Agreement of Merger dated March 17, 2004, by
and among the Company,  Ionatron Acquisition Corp., a wholly owned subsidiary of
the Company,  Robert Kassel (for the limited  purposes set forth therein),  Fred
Heiden  (for  the  limited  purposes  set  forth  therein),   Ionatron  and  the
stockholders  of Ionatron  (incorporated  by  reference  to Exhibit  2(a) to the
Company's Current Report on Form 8-K dated March 24, 2004).



                                    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: March 25, 2004


                                                         /s/ Stephen W. McCahon
                                                         -----------------------
                                                             Stephen W. McCahon