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Chlorpyrifos - Pesticide Tolerance 12/93

 December 22, 1993

  SUBJECT:  Reregistration Notification

       TO:  Users of the RNN

     FROM:  Dr. Nancy N. Ragsdale
            Director, NAPIAP

  Enclosed is a latest notice of the Reregistration Notification Network
  (RNN) dated December 22, 1993.  This issue of the RNN deals with several
  residue tolerance and action level revocations, pesticide use
  cancellations, commodity tolerance definitions, and other actions.  Of
  special note is the final decision by the EPA Statospheric Protection
  Division to restrict the production and importation of methyl bromide.

  The USDA has recently published the proceedings from a USDA Workshop on
  alternatives to methyl bromide held from June 29 to July 1, 1993, in
  Arlington, Virginia.  Titled "Alternatives to Methyl Bromide: Assessment
  of Research Needs and Priorities", it contains specific crop and commodity
  recommendations on the alternatives to methyl bromide for postharvest
  commodity treatment, quarantine treatment and soil fumigation.  Suggestions
  are also made concerning research needs and priorities.  If you would like
  a copy of this 85-page, free publication, contact:

                  Dr. Kenneth Vick
                  BARC-West, Bldg. 005, Rm 216
                  10300 Baltimore Blvd.
                  Beltsville, MD 20705-2350
                  Phone (301) 504-5321
                  Fax (301) 504-5467

                         U.S. DEPARTMENT OF AGRICULTURE



                              Volume 3, Number 16

The intent of this network is to inform interested parties of recent or
impending pesticide use cancellations, tolerance revocations and other items
of agricultural interest.  To the best of our knowledge, the uses mentioned
here, unless otherwise indicated, will not appear on any label registered by
the USEPA following the uses expected cancellation.  We recommend that you
express any concerns or questions you have to the contact mentioned below or
your NAPIAP State Liaison Representative.  If you wish to contact us at USDA,
our phone number is (301) 504-8846, and our fax number is (301) 504-8063.

  chlorpyrifos   The U.S. Food and Drug Administration (FDA) has agreed to the
   (Lorsban)     USEPA's request to exercise discretion and allow imported
                 STONE FRUITS and PEARS to temporarily have chlorpyrifos
                 residues up to 0.05 ppm (the current tolerance is 0.01 ppm).
                 The USEPA expects to have the 0.05 tolerance in place for
                 chlorpyrifos on pears, peaches, nectarines, and plums by
                 1/25/94.  Regional and District offices of FDA will notify
                 FDA headquarters whenever STONE FRUITS or PEARS are found to
                 contain chlorpyrifos residues (parent compound only) at
                 levels between 0.01 and 0.05 ppm.  FDA headquarters will
                 evaluate the results on a case-by-case basis and make
                 regulatory decisions accordingly.

       For additional information contact:
                Mr. John R. Wessel
                Food and Drug Administration
                Phone (301) 443-1815
                Fax (301) 443-6591

       Initial source:  Pest. & Toxic Chem. News 22(6):20