# STARLINK CORN

- EPA Reg No: **264-669**
- Registrant: BAYER CROPSCIENCE, LLC
- Signal word: Caution
- Active ingredients: Bacillus thuringiensis subsp. tolworthi Cry9C protein and the genetic   material necessary for its production (pRVA9909) in corn plants (4.7%)
- Label accepted: 2000-04-07
- Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/000264-00669-20000407.pdf

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i 
Dr. Sally Van Wert 
Director, Regulatory Affairs - Biotechnology Nort\:! America 
A ventis CropScience USA LP 
2 T. W. Alexander Drive 
P.O. Box 12014 
Research Triangle Park, NC 27709 
Dear Dr. Van Wert: 
SUbject: Amendment Application Dated Febmary 4, lOOO Regarding Modification of Term 3 of 
the Terms and Conditions of this Registration and Revised Labeling! StarLinkT " Corn 
EP A Registration No. 264-669 
The amendment referred to above, submitted in connection with registration under 
FIFRA section 3( c )(7)(A) is acceptable, subject to the following. 
I) Submit and/or cite all data required for registration of your product under FIFRA. 
section 3(c)(5) when the Agency requires all registrants 0; similar products to submit such data. 
2) Term 3 of the terms and conditioTI5 "fthis registration is modified to read as follows. 
Grower agreements (Stewardship Agreements) \vil1 s-r~':ify :h:n ~rowers must adhere to the refuge 
requirements as-described in the Gro\ver Guide/Product l~sc Guide and/or in supplements to the Gro'\ver 
Guide/Product Use Guide. Specifically, growers must phn: :l minimum structured refuge of at least 20% 
non-Bt corn. Insecticide treaUTIents for conrrol of EurOpC'JI: corn borer, corn eaf\vorm andlor Southwestern 
corn borer may be applied only if economic threshold~ JIe ,c3.c!:oed for one or more of these target pests. 
Economic thresholds will" be deterrni..1.ed using methocs rec0r.unended by loed or regional professionals 
(e.g., Extension Service agents, crop consultants). Im::uct:0I:S to growers will specify that microbial Sf 
insecticides must not be applied to non-Sr corn refuges. Re~uiremel1ts for refuge deployment \vill be 
described in the Grower GuideslProduct l-se Guides. Gro\\-ers r:111St plam the refuge within V2 mile of their 
Sf com acreage. In regions of the corn belt where cOIl.'.-entlOl131 insecticides have historically been used to 
control ECB and SWCB, grmvers wanting the option to tTc::'.i thes-e pests must plant the refuge \vithin I~ 
mile of their Sr corn. Refuge planting options include: Sep3.fJte fields, blocks \vithin fields (e.g., along the 
edges or headlands), and strips across the field. When planting the refuge in strips across the field, growers 
must be instructed to plant multiple non-Br rows whenever possible. 
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_ O:=:=ICIAL.FILE C:::J?';

3) Make the following changes to the draft label submitted prior to releasing corn for 
shipment under the terms of this amendment. 
a)Change the registration number referenced for Liberty to "264-660." 
b) Replace the statement "However, har.esting of the corn planted after April I, 2001 is 
permissible subject to the terms of this registration." with "However, harvesting of the corn 
planted prior to April I, 200 lis permissible subject to the terms of this registration." 
4) Submit five (5) copies of your final labeling. 
Your release ofBt corn into commerce under these modified terms and conditions 
constitutes acceptance of these conditions. If these conditions are not complied with, the 
registration will be subject to cancellation in accordance with FIFRA section 6(e). 
A stamped copy of the label is enclosed for your records. 
Enclosure 
Sincerely, 
;)L~lt: aJt·~<--
~anet~. Andersen, Ph.D. 
. Director 
Biopesticides and Pollution 
Prevention Division (7511 C) 
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StarLink™ CORN 
StarLink"" com produces both an insecticidal protein, Cry9C from Bacillus rhuringiensis subsp. 
la/worlhi. for protection from European com borer and Southwestern com borer, suppression of 
Black cut worm and Cornmon stalk borer, and a herbicide resista'lce protein, phosphinothricin 
acetyltransferase (PAT). PAT provides protection from the Liberty~ herbicide (EPA Registration 
Number 264-669), a herbicide that has glufosinate-arrunoniurn as its active ingredient. 
StarLinkT>f corn are descended from corn plants transformed with vectors pRY A9909 and pDEl 10. 
Active Ingredient: 
Inert Ingredients: 
KEEP OUT OF REACH OF CHILDRL" 
CAUTION 
Bacillus rhuringiensis subsp. tolworlhi Cry9C 
protein and the genetic material necessary for 
its production in com ....................................................... O.9-4.7%h 
Substance produced by.a marker gene and its 
controlling sequences in com ......... ~ ................................. O.2-1.6%1 
Tne percentages list the ingredient as a percent of the: total plam prot6n on :a dry weight: basis . 
• US Patent5 ?e!1ding. 
EPA Regisu-ation No. 264-669 
EPA Esta':llishment Number: 070218-BEL-OOI 
DIRECTIONS FOR USE 
It is a vio~£ion of Federal Law to use this product in a manner inconsistent with its labeling. 
Keep out of lakes, ponds or streams. Do not contaminate water by cleaning of equipment or 
disposal of wastes. All field com containing the plant-pesticide ltat is sold or distributed by 
Aventis CropScience USA LP or a cooperator or licensee of Aventis, must be accompanied by 
informational material that contains the following: 
StarLink™ com contain a Bacillus thuringiensis subsp. to!worrhi insecticidal protein, Cry9C and 
may only be used according to the instructions below for L':e control of the following insects: 
1 . .!.."1entis C:-opSci~nce US:-. !..? 
2 T.W .. Ale.."t.anci2r ~=iv= 
P.O. Bo.:, lz,e;.;. 
?~2.sea:--.:~ ~.3.::~!e Pa!"t:, ~rc ::'7--::'= 
R2-..-:.sed beel: 3 . ..1..::::2 [:'~ 
=

4/~ 
Starlink Ti>! com contain a Bacillus Ihuringiensis subsp. to/worrhi insecticidal protein, Cry9C and 
may only be L1sec accorci:1g to the instructions below for the suppression of the following 
insects: 
Black cut wor:n 
Common staL~ bore-; 
AgToris ipsion (Hufnagel) 
Papaipema nebris (Guen.) 
Do not use this com until yeu have read the Bag Tag and the Grower's Guide. 
Insect Resistant Management: To protect this important technology, a structured non-Bt com 
refuge must be plfL'1ted in close proximity to your StarLink™ corn fields. Specifically, a 
structured refuge of non-Bj corn equal to at least 20% of the total corn acres must be planted. 
The refuge must be located \VitEr. !I: mile of the StarLink™ field, unless you plan to use a foliar­
applied insecticide for Corn borer control; then it must be planted within I/. mile. Any 
insecticide treatment for Com borer cannot include sprayable Bt products. 
Seed Production Fses: Seeds eX;JIess:ng the Cry9C protein should be planted at a maximum of 
40,000 seeds per acre on the site .. -'.ny seeds, plants or plant materials in the StarLink™ field, or 
within 660 feet of L1e fielc that is not used for seed production should be destroyed or used 
domestically for arumai feee or ::o::-food industrial pwpases. None of the seeds, plants or plmt 
materials in the StarLin.1(TM fielc., or "'ithin 660 feet of L1C field, may be used for food uses or 
may enter international commerce. 
Feed or Non-food Industrial LSe5: Seeds expressing the Cry9C protein should be planted at a 
maximum of 40,000 seeds per acre on tl:e site. Any seeds, plants or plant materials in the 
S tarL ink T" field, or wiL\}in 660 feel of the field, shOUld be used domestically for animal feed or 
non-food industrial purposes. "t\o::.e of the seeds, plan.ts or plant materials in the StarLink T" plot, 
or within 660 feet 01:he 1Jeld, may be used for food uses or mey enter international commerce. 
STORAGE AND DISPOSAL 
Seed Storage: Store in a cool Cc"y place separate from conventional com seed. 
Seed and Plant Disposal: A::y seeds, plants or plant materials in the StarLink™ field!, or 
within 660 feet of t~e field, may be used domestically for animal feed or industrial pwposes, or 
destroyed. None of L'le seeds, pla.,:(s or pla.'lt materials in the StarLink™ fieldt, or within 660 
feet oflhe field, may be used for food uses or may e7lter international commerce. 
Container Disposal: Do not reuse bag_ Discard bag in t.rash. Ensure that the bag is completely 
empty of seed before disposal. 
2 ...;, ... ·entis Crop Science USA LP. 
2 T. W. Alexander Drive 
P.O. Box 12014. 
'::'25ea.::...'-: Triangle Park, NC 27709 
Revi"ed label: 3 April 00 
P.24

For Product Inquiry Information, 
Call Toll Free: 1-877-ST;,. .... 1li.I:;K 
(1-877-782-7546) 
The registration of this pesticide prcduCl for use in field caIT. ,,,",ill a'Ctoma!ically expire On midnight . .o..;:rii 
1,2001. After this registration has expire~ no field corn seed thZ! contain the pes~ic:de product may be 
sold or planted. However. harvesting of the oom plamed after Ap':: 1,2001 is permissible subject to the 
terms of this registration. 
3 .;"ventis C:opScience GSA :2. 
2 '! .. ,~,'. _.l.lexande.:r Dr.::e . 
?O. Box 12C4. 
::esea!"cn T:ia::lg~e P3.rk. NC 27';'C9 
Re~~"d [;:";"'1: 3 Apr": GO 
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