UNITED
STATES
ENVIRONMENTAL
PROTECTION
AGENCY
WASHINGTON,
D.
C.
20460
OFFICE
OF
PREVENTION,
PESTICIDES
AND
TOXIC
SUBSTANCES
Memorandum
SUBJECT:
Use
Closure
Memorandum
on
Bitertanol,
PC
#
117801
for
the
Tolerance
Reassessment
Decision
FROM:
Rosanna
Louie,
Chemical
Review
Manager
Reregistration
Branch
3
Special
Review
and
Reregistration
Division
TO:
Bitertanol
Team
DATE:
July
1,
2005
The
purpose
of
this
memorandum
is
to
provide
use
information
on
bitertanol
that
will
be
used
in
preparing
the
bitertanol
risk
assessment
for
the
Tolerance
Reassessment
Decision,
also
known
as
a
TRED.
There
are
no
currently
registered
uses
for
bitertanol
in
the
U.
S.
Therefore,
information
provided
only
reflects
information
on
bitertanol
use
in
countries
exporting
commodities
containing
bitertanol
residues
into
the
U.
S.
Per
40
CFR
§
180.457,
there
is
a
current
tolerance
established
for
bitertanol
residues
on
bananas,
which
also
includes
residues
on
plantains.

Bitertanol
is
a
fungicide
used
to
treat
black
sigatoka
on
plantain
and
banana
plants,
and
can
be
applied
aerially,
by
backpack
sprayer,
and
by
other
sprayer
equipment.
Bitertanol
is
formulated
either
as
an
emulsifiable
concentrate
(
EC)
or
suspension
concentrate
(
SC).
Major
countries
that
intend
to
export
bananas
or
plantains
that
may
contain
bitertanol
residues
are
Ecuador,
Guatemala,
Costa
Rica,
Colombia,
and
Honduras.
Attachment
A
includes
detailed
information
on
bitertanol
use
in
these
countries
as
provided
by
Bayer
CropScience,
the
sole
registrant.

Should
new
use
information
become
available
during
the
development
of
the
risk
assessments,
please
inform
me
so
that
I
can
coordinate
the
new
information
with
the
entire
team.
If
you
have
any
questions
or
concerns
regarding
this
memorandum,
please
contact
me
at
(
703)
308­
0037.

Attachment
­
Attachment
A
 
Use
Information
for
Bitertanol
ATTACHMENT
A
 
Use
Information
for
Bitertanol
PC
#
117801
Use
Sites
Banana,
plantain
Percent
Formulation
Trade
Names
30
%
a.
i.
EC
Baycor
300
EC,
Baycor
30
EC,
Baycor
300
DC,
Baycor
300
CE
50
%
a.
i.
SC
Baycor
500
EC,
Baycor
50
SC
Formulations*

*
There
are
only
two
end­
use
formulations
for
bitertanol:
30%
EC
and
50%

SC
active
ingredient
(
AI)
percentage.
The
variation
in
product
names
reflect
different
product
naming
requirements
depending
on
which
country
each
product
is
registered
in.

Maximum
Single
Application
Rate
.133
lb
a.
i./
A
Maximum
Seasonal
Application
Rate
1.064
lb
a.
i./
A
Maximum
No.
of
Applications
per
Season
8
applications
Minimum
Treatment
Intervals
7
days
Re­
entry
Interval
12
hours
Pre­
harvest
Interval
None
Application
Type
Foliar
Application
Timing
During
fruit
development
Application
Restriction(
s)
None
Major:
Ecuador,
Guatemala,
Costa
Rica,
Colombia,
Honduras
Countries
that
Intend
to
Export
Crops
with
Bitertanol
Residues
Minor:
Mexico,
Nicaragua,
Peru,
Venezuela,
Dominican
Republic,
Panama
