United States      Prevention, Pesticides     EPA 712-C-98-410
          Environmental Protection   and Toxic Substances     March 1998
          Agency        (7101)
4»EPA    Product Performance
          Test Guidelines
          OPPTS 810.3100
          Soil Treatments for
          mported Fire Ants

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                           INTRODUCTION
     This guideline is one  of a  series  of test  guidelines that have been
developed by the Office of Prevention, Pesticides and Toxic Substances,
United States Environmental  Protection Agency for use  in the testing of
pesticides and toxic substances, and the  development of test data that must
be submitted to the Agency  for review under Federal regulations.

     The Office of Prevention, Pesticides and Toxic Substances (OPPTS)
has  developed this guideline through  a process of harmonization that
blended the testing  guidance  and requirements that  existed in the Office
of Pollution Prevention and  Toxics  (OPPT) and appeared in Title  40,
Chapter I,  Subchapter R of the Code of Federal Regulations  (CFR),  the
Office of Pesticide Programs (OPP) which appeared in publications of the
National Technical  Information Service (NTIS) and the guidelines pub-
lished by the Organization  for Economic Cooperation and Development
(OECD).

     The purpose of harmonizing these  guidelines  into a single set of
OPPTS  guidelines is to minimize variations among the testing procedures
that must be performed to meet the data  requirements of the U. S. Environ-
mental Protection Agency  under the Toxic  Substances  Control Act  (15
U.S.C. 2601) and the Federal Insecticide, Fungicide and Rodenticide Act
(7U.S.C. I36,etseq.).

     Final  Guideline Release: This guideline  is available from the U.S.
Government Printing Office, Washington, DC 20402 on The Federal Bul-
letin  Board.   By  modem  dial   202-512-1387,  telnet   and   ftp:
fedbbs.access.gpo.gov  (IP 162.140.64.19), or  call 202-512-0132 for disks
or paper copies.  This  guideline is also available electronically in ASCII
and PDF (portable document format) from EPA's World Wide Web  site
(http://www.epa.gov/epahome/research.htm) under the heading "Research-
ers and  Scientists/Test Methods and Guidelines/OPPTS  Harmonized Test
Guidelines."

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OPPTS 810.3100  Soil treatments for imported fire ants.
     (a) Scope—(1) Applicability. This guideline is intended to meet test-
ing requirements of the  Federal  Insecticide, Fungicide,  and Rodenticide
Act (FIFRA) (7 U.S.C. 136, et seq.)

     (2) Background. The source material used in developing this har-
monized OPPTS test guideline is  OPP guideline 95-3 General Soil Treat-
ments (Pesticide Assessment Guidelines, Subdivision G: Product Perform-
ance, EPA report 540/9-82-026, October 1982).

     (b) Overview. This guideline is concerned with efficacy testing of
invertebrate control pesticides used for control of imported fire ants.

     (c) General considerations.  The testing of pesticide products for use
in home gardens should follow the  same procedures as are  appropriate
for evaluating their commercial use.

     (d) Evaluation  and reporting procedures. The procedures used to
evaluate product performance should be specified. Reports should include
insect counts, percent damage, or other measures for determining the effec-
tiveness of the test product. Results should include the average infestation
reduction throughout the sampled post-treatment period compared with that
in control plots  or in pre- and post-treatment periods. Raw data on pest
counts, injury counts, or other measures of control should be summarized.
Any adverse effects such as phytotoxicity should be reported.

     (e) Site selection. Sites should be selected from several states within
the range  of the imported fire ant. Usually, three such sites are necessary
to provide information in the data  derived.

     (f) Plot size—(1) Mound application. In general, use a minimum
of 10 mounds per plot. Usually, 3 to 4 plots are treated with the candidate
compound and 1 plot is used as a control.

     (2) Broadcast treatments. Plots should be of sufficient size to permit
the use of the application equipment specified  on the label.  Replication
may be difficult when very large plots are necessary, but is  encouraged
to develop statistically valid data.

     (g) Suggested performance standards. Unless  otherwise specified,
these standards are presented on the basis of pre- and post-treatment pest
population counts from the treated as  well as the untreated lots and stand-
ard comparative treatments. All percentages of control refer  to  the per-
formance  of the test substance  (as determined by insect counts and other
measures correlated to insect population pressures) against the vulnerable
stage(s) of the target pest, when evaluated according to a recognized treat-
ment program under actual field conditions.

     (1) Control claims. A minimum of 90% control based on counts
made for a minimum of 30 days  for mound applications and 60  days for

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broadcast treatments. Percent control is based on the percent reduction in
both old and new active mounds in the treatment area as compared to
precounts and untreated controls.

    (2) Suppression claims. Broadcast treatments only. A minimum of
80% control based on counts made for a minimum of 60 days and based
upon the adjusted percentage of reduction of the total number of old and
new active mounds in the treatment area and untreated controls. A lower
percentage  of control may be acceptable if testing was done under adverse
conditions, but in no case would less than 70% control be acceptable.

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