SECURITIES AND EXCHANGE COMMISSION

                             WASHINGTON, D.C. 20549

                                    FORM 8-K

                                 CURRENT REPORT

                       Pursuant to Section 13 or 15(d) of
                      the Securities Exchange Act of 1934


        Date of Report (Date of earliest event reported): May 12, 1999
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                                   KTI, INC.
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             (Exact Name of Registrant as Specified in its Charter)

                                   New Jersey
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                 (State or Other Jurisdiction of Incorporation)


              33-85234                                    22-2665282
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     (Commission File Number)                 (IRS Employer Identification No.)

                                 (201) 854-7777
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              (Registrant's Telephone Number, Including Area Code)

                                 Not Applicable
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          (Former Name or Former Address, if Changed Since Last Report)



Item 5.   Other Events.

     On May 12, 1999, the Registrant  entered into an amendment to the Agreement
and Plan of Merger with Casella  Waste  Systems,  Inc.  ("Casella"),  a Delaware
corporation,  and  Rutland  Acquisition  Sub,  Inc.,  a New Jersey  corporation.
Pursuant  to the  amendment,  the  exchange  ratio  reduced  to 0.59  shares  of
Casella's Class A common stock for each share of the Registrant's  common stock.
The  Registrant  also  amended  the terms of the  stock  option  agreement  with
Casella.

     The  Registrant  issued a press release dated May 13, 1999,  describing the
amendment to the merger agreement.

Item 7.   Financial Statements and Exhibits

     (c)  Exhibits

Exhibit No.    Description
- -----------    -----------

  99.1         Press Release of the Registrant, dated May 13, 1999
  99.2         Amendment No. 1 to Agreement and Plan of Merger
  99.3         Amendment No. 1 to Stock Option Agreement

                                   SIGNATURES

     Pursuant to the  requirements  of the Securities  Exchange Act of 1934, the
Registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned hereunto duly authorized.


Date:     May 17, 1999                  KTI, INC.
                                        (Registrant)


                                        By:  /s/ Martin J. Sergi
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                                             Martin J. Sergi
                                             President