crop-chem-docs/corpus/epa_ppls/524-606.md

# MON 89034 X MON 88017 SEED BLEND

- EPA Reg No: **524-606**
- Registrant: BAYER CROPSCIENCE, LLC
- Signal word: Caution
- Active ingredients: Bacillus thuringiensis Cry3Bb1 protein and the genetic material necessary (vector ZMIR39) for its production in corn (0.007%); Bacillus thuringiensis Cry1A.105 protein and genetic material necessary (vector PV-ZMIR245) for its production in corn (0.0024%); Bacillus thuringiensis Cry2Ab2 protein and the genetic material necessary (vector PV-ZMIR245) for its production in corn (0.0057%)
- Label accepted: 2019-03-13
- Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/000524-00606-20190313.pdf

---
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY 
Washington, D.C. 2
0460 
OFFICE OF CHEMICAL SAFETY 
AND POLLUTION PREVENTION
March 13, 2019 
David Chi 
Regulatory Affairs Manager 
Monsanto Company
Suite 450 E. 
1300 I (Eye) Street, NW 
Washington, DC 20005-7211 
Subject: Pesticide Registration Improvement Act (PRIA) Amendment – B900 Amendment to extend the 
expiration date for the registration of MON 89034 x MON 88017 Seed Blend, update the 
registration terms, and remove alternate brand names from the product label. 
EPA Registration Number: 524-606 
Submission Date: September 7, 2018 
OPP Decision Number: 544526 
Dear Mr. Chi: 
The amendment referenced above, submitted in connection with registration under Section 3(c)(7)(A) of the 
Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), is acceptable provided that you comply with 
the updated terms and conditions as described in this letter. 
1. The subject registration will automatically expire at midnight on December 31, 2020.
2. Monsanto must adhere to the transition strategy detailed in its submission titled “Amended Phase Out
Plan for MON 89034 x MON 88017 Field Corn (VT Triple PRO®)” (dated September 7, 2018) (MRID:
506395-02).
3. The subject registration will be limited to a field corn blend containing up to 90% Bacillus thuringiensis
Cry1A.105 and Cry2Ab2 proteins and the genetic material necessary for their production (vector
PVZMIR245) in MON 89034 corn (OECD Unique Identifier: MON-8934-3 x MON-8817-3) and
Bacillus thuringiensis Cry3Bb1 protein and the genetic material necessary for its production (vector PV-
ZMIR39) in MON 88017 corn (OECD Unique Identifier: MON-8934-3 x MON-8817-3) and a
minimum of 10% non-Bt seed that when planted creates an interspersed refuge within the field.
4. Submit and/or cite all data required for registration or regist ration review of MON 89034 x MON 88017
Seed Blend when the EPA requires all registrants of similar products to submit such data.
5. This plant-incorporated protectant (PIP) may be combined through conventional breeding with other
registered plant-incorporated protectants that are similarly approved for use in combination, through
conventional breeding, with other registered plant-incorporated protectants to produce inbred corn lines
and hybrid corn varieties with combined pesticidal traits.

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6. Monsanto must commit to do the following Insect Resistance Management (IRM) Program, consisting of 
the following elements: 
 
 Requirements for Monsanto to implement an IPM-based stewardship program designed to 
reduce selection pressure for corn rootworm (CRW) resistance. 
 
 Requirements relating to a refuge assurance program for ensuring the correct refuge blend 
percentage. 
 
 Requirements relating to creation of a lepidopteran refuge (consisting of corn that does not 
contain any Bt trait for lepidopteran control) in cotton growing regions in conjunction with the 
planting of MON 89034 x MON 88017 corn. 
 
 Requirements for Monsanto to prepare and require MON 89034 x MON 88017 Seed Blend corn 
users to sign grower agreements that impose binding contractual obligations on growers to 
comply with the refuge requirements. 
 
 Requirements for Monsanto to develop, implement, and report to EPA on programs to 
educate growers about IRM requirements. 
 
 Requirements for Monsanto to develop, implement, and report to EPA on programs to 
evaluate and promote growers’ compliance with IRM requirements. 
 
 Requirements for Monsanto to develop, implement, and report to EPA on monitoring programs 
to evaluate whether there are statistically significant and biologically relevant changes in 
susceptibility to the Cry1A.105 and Cry2Ab2 proteins in the target insects. 
 
 Requirements for Monsanto to develop, and if triggered, to implement a remedial action plan 
that would contain measures Monsanto would take in the event that any field-relevant insect 
resistance to Cry1A.105 and/or Cry2Ab2 was detected, as well as to report on activity under 
the plan to EPA. 
 
 Requirements for Monsanto to investigate reports of unexpected CRW damage to MON 
89034 x MON 88017 Seed Blend corn from growers (“performance inquiries”) and 
sample CRW to determine if the insects are resistant to Cry3Bb1. 
 
 Requirements for Monsanto to recommend CRW management options to growers in response 
to cases of unexpected CRW damage to MON 89034 x MON 88017 Seed Blend corn. 
 
 Requirements regarding mitigation and notification actions that Monsanto would take in 
the event that CRW resistance was detected. 
 
 Requirements for Monsanto to maintain, and provide the Agency upon request, the number 
of units sold by state and county, IRM grower agreement results, and substantive changes to 
educational programs. Monsanto is required to submit reports within three months of the 
Agency’s request.

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 Bag Tag Requirements for MON 89034 x MON 88017 Seed Blend corn. Seed bags and/or bag 
tags for corn hybrids that contain plant- incorporated protectants produced in MON 89034 x 
MON 88017 Seed Blend corn must display the registration number and active ingredients, and 
stipulate that growers read the Monsanto Stewardship Guide (or equivalent guidance) prior to 
planting these hybrids. The refuge size requirement must be displayed on the bag or bag tag in 
both text and graphic format. 
 
 Requirements for Monsanto, on or before August 31st of each year, to submit reports on 
Cry1A.105 and Cry2Ab2 resistance monitoring. 
 
a. Integrated Pest Management Stewardship Program 
 
1. Monsanto must implement an IPM-based stewardship program for MON 89034 x MON 88017 Seed Blend 
corn. This program must be designed to reduce selection pressure for corn rootworm (CRW) resistance by 
encouraging growers to engage in a multi-year crop rotation strategy involving the use of one or more of the 
following: a non-CRW host crop (e.g., soybean), pyramided Bt corn Plant Incorporated Protectants (PIPs), 
other PIP corn products with different modes of action, and/or non-Bt or non-CRW protected Bt corn. As 
part of the stewardship program, Monsanto must update the technology use guide/grower guide and other 
grower educational materials to indicate that application of an insecticide to the soil surface, in furrows, 
and/or incorporated into the soil (referred to as “soil applied insecticide”, “soil insecticide” or “SAI”) with 
MON 89034 x MON 88017 Seed Blend corn is not recommended for control of CRW except under limited 
circumstances and in consultation with extension, crop consultants or other local experts. As part of the 
stewardship program, Monsanto must promote the ABSTC/NCGA Best Management Practices (BMPs) for 
CRW control. Implementation of the IPM strategy can include: 
 
 Grower education initiatives or incentives. 
 Outreach to extension and consultant groups. 
 
2. Monsanto must submit an annual report to EPA documenting activities conducted under the IPM 
stewardship program. This report must include an anonymous survey of grower practices, including 
adoption levels of the various crop rotation options (if employed) and other elements of the stewardship 
program. Monsanto may combine this product with other registered products to submit one annual report. 
The report must be submitted by January 31st each year. 
 
b. Refuge Requirements for MON 89034 x MON 88017 Seed Blend 
 
The following information must be included on the product bag or bag-tag as sold per respective region and in 
the Grower Guide: 
i. Corn-Belt/Non-Cotton Growing Areas 
 
MON 89034 x MON 88017 Seed Blend corn contains a Lepidopteran and CRW refuge that is “in the bag” 
and is automatically implemented when the grower plants the product. No additional refuge is required when 
planting this product. 
 
Foliar insecticide treatments for control of European corn borer, corn earworm, southwestern corn borer, fall 
armyworm, black cutworm, western bean cutworm, lesser corn stalk borer, southern corn stalk borer, stalk 
borer and sugarcane borer may be applied only if economic thresholds are reached for one or more of these 
target pests. Foliar insecticide treatments are also permitted for control of corn rootworm adults if economic

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thresholds are reached. Economic thresholds will be determined using methods recommended by local or 
regional professionals (e.g., Extension Service agents, crop consultants). 
 
ii. Cotton-Growing Region Refuge Requirements 
 
These refuge requirements do not apply to seed increase/propagation of inbred and hybrid seed corn up to a 
total of 20,000 acres per county and up to a combined United States (U.S.) total of 250,000 acres per plant-
incorporated protectant (PIP) active ingredient per registrant per year. Grower agreements (also known as 
stewardship agreements) will specify that growers must adhere to the refuge requirements as described in the 
grower guide/product use guide and/or in supplements to the grower guide/product use guide. 
 
In cotton-growing regions where corn earworm is a significant pest: 
 
 The 20% refuge must be planted with non-Bt corn hybrids. 
 
 MON 89034 x MON 88017 Seed Blend corn and the 20% non-Bt refuge should be sown on the same 
day, or with the shortest window possible between planting dates. 
 
 External refuges may be planted as an in-field or adjacent (e.g., across the road) refuge or as a 
separate block within 1/2 mile of the MON 89034 x MON 88017 Seed Blend corn field. 
 
 In field refuge options include: blocks, perimeter strips (i.e., along the edges or headlands), or in-field 
strips. 
 
 When planting the refuge in strips across the field, refuges must be at least four (4) rows wide. 
 
 Insecticide treatments for control of European corn borer, corn earworm, southwestern corn borer, fall 
armyworm, black cutworm, western bean cutworm, lesser corn stalk borer, southern corn stalk borer, 
stalk borer and sugarcane borer may be applied only if economic thresholds are reached for one or more 
of these target pests. Economic thresholds will be determined using methods recommended by local or 
regional professionals (e.g., Extension Service agents, crop consultants). Microbial Bt insecticides must 
not be applied to non-Bt corn refuge plants. 
 
 Cotton-growing areas include the following states: Alabama, Arkansas, Georgia, Florida, Louisiana, 
North Carolina, Mississippi, South Carolina, Oklahoma (only the counties of Beckham, Caddo, 
Comanche, Custer, Greer, Harmon, Jackson, Kay, Kiowa, Tillman, Washita), Tennessee (only the 
counties of Carroll, Chester, Crockett, Dyer, Fayette, Franklin, Gibson, Hardeman, Hardin, Haywood, 
Lake, Lauderdale, Lincoln, Madison, Obion, Rutherford, Shelby, and Tipton), Texas (except the counties 
of Carson, Dallam, Hansford, Hartley, Hutchinson, Lipscomb, Moore, Ochiltree, Roberts, and Sherman), 
Virginia (only the counties of Dinwiddie, Franklin City, Greensville, Isle of Wight, Northampton, 
Southampton, Suffolk City, Surrey, Sussex) and Missouri (only the counties of Dunklin, New Madrid, 
Pemiscot, Scott, Stoddard). 
 
c. Grower Agreements for MON 89034 x MON 88017 Seed Blend 
 
1. Persons purchasing MON 89034 x MON 88017 Seed Blend corn must sign a grower agreement. The term 
grower agreement refers to any grower purchase contract, license agreement, or similar legal document. 
 
2. The grower agreement and/or specific stewardship documents referenced in the grower agreement must

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clearly set forth the terms of the current IRM program. By signing the grower agreement, a grower must be 
contractually bound to comply with the requirements of the IRM program. 
 
3. Monsanto must continue to integrate this registration into the current system used for its other Bt corn 
plant- incorporated protectants, which is reasonably likely to assure that persons purchasing MON 89034 x 
MON 88017 Seed Blend corn will affirm annually that they are contractually bound to comply with the 
requirements of the IRM program. 
 
4. Monsanto must continue to use its current grower agreement for MON 89034 x MON 88017 Seed Blend 
corn. If Monsanto wishes to change any part of the grower agreement or any specific stewardship 
documents referenced in the grower agreement that would affect either the content of the IRM program or 
the legal enforceability of the provisions of the agreement relating to the IRM program, then thirty (30) 
days prior to implementing a proposed change, Monsanto must submit to EPA the text of such changes to 
ensure that it is consistent with the terms and conditions of this amended registration. 
 
5. Monsanto shall maintain records of all MON 89034 x MON 88017 Seed Blend corn grower agreements for 
a period of three (3) years from December 31st of the year in which the agreement was signed. 
 
6. Monsanto shall make available to the Agency upon request records of the number of units of MON 89034 
x MON 88017 Seed Blend corn seed sold or shipped and not returned, and the number of such units that 
were sold to persons who have signed grower agreements for the previous growing season. Monsanto is 
required to submit reports within three months of the Agency’s request. 
 
7. Monsanto must allow a review of the grower agreements and grower agreement records by EPA or by a 
State pesticide regulatory agency if the State agency can demonstrate that confidential business 
information, including names, personal information, and grower license numbers of the growers, will be 
protected. 
 
d. IRM Education and IRM Compliance Monitoring Program for MON 89034 x MON 88017 Seed 
Blend 
 
1. Monsanto must implement and enhance (as set forth in paragraph 17 of this section) a comprehensive, 
ongoing IRM education program designed to convey to MON 89034 x MON 88017 Seed Blend corn users 
the importance of complying with the IRM program, as well as seed blend product performance 
expectations and guidance to growers on actions to take when unexpected damage occurs. The program 
shall include information encouraging MON 89034 x MON 88017 Seed Blend corn users to pursue 
optional elements of the IRM program relating to refuge configuration and proximity to MON 89034 x 
MON 88017 Seed Blend corn fields. The education program shall involve the use of multiple media, e.g. 
face-to-face meetings, mailing written materials, EPA-reviewed language on IRM requirements on the bag 
or bag tag, and electronic communications such as by internet, radio, or television commercials. The 
program shall involve at least one written communication annually to each MON 89034 x MON 88017 
Seed Blend corn user separate from the grower technical guide. The communication shall inform the user 
of the current IRM requirements and specifically the need to plant a lepidopteran refuge in cotton growing 
regions. Monsanto shall coordinate its education program with the educational efforts of other registrants 
and other organizations, such as the National Corn Growers Association and state extension programs. 
 
2. Monsanto shall revise, and expand as necessary, its education program to take into account the information 
collected through the compliance survey, required under paragraphs 6–9 of this section, and from other 
sources. The changes shall address aspects of grower compliance that are not sufficiently high.

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3. Upon EPA request, Monsanto shall provide copies of grower education materials and information on 
grower education activities including any substantive changes to these materials and activities conducted 
either individually or as part of the industry working group Agricultural Biotechnology Stewardship 
Technical Committee (ABSTC). Monsanto is required to submit reports within three months of the 
Agency’s request. The required features of the compliance assurance program are described in paragraphs 
4–22 of this section. 
 
4. Monsanto must implement and improve an ongoing IRM compliance assurance program designed to 
evaluate the extent to which growers purchasing MON 89034 x MON 88017 Seed Blend corn are 
compliant with the requirement of a 20% refuge for lepidopteran pests in cotton growing areas, and that 
takes such actions as are reasonably needed to assure that growers who have not complied with the 
program either do so in the future or lose their access to Monsanto’s Bt corn products. Monsanto shall 
coordinate with other Bt corn registrants in improving its compliance assurance program and integrate this 
registration into the current compliance assurance program used for its other Bt corn plant-incorporated 
protectants. Other required features of the program are described in paragraphs 5–22 of this section. 
 
5. Monsanto must maintain and publicize a phased compliance approach (i.e., a guidance document that 
indicates how it will address instances of non-compliance with the terms of the IRM program and general 
criteria for choosing among options for responding to any non-compliant growers after the first year of 
non-compliance). While recognizing that for reasons of difference in business practices there are needs for 
flexibility between different companies, Monsanto must use a consistent set of standards for responding to 
non-compliance. An individual grower found to be significantly out of compliance two (2) years in a row 
would be denied access the next year to Monsanto’s Bt corn products for which the grower is required to 
plant a separate structured refuge. Similarly, seed dealers who are not fulfilling their obligations to 
inform/educate growers of their IRM obligations will lose their opportunity to sell Bt corn. 
 
6. The IRM compliance assurance program shall include a biennial survey, conducted by an independent third 
party, of a statistically representative sample of growers MON 89034 x MON 88017 Seed Blend corn. The 
survey shall be conducted in odd-numbered years beginning in 2019 and shall include growers who plant 
100 or more acres of corn in the Southern U.S. corn-cotton areas. Monsanto may collaborate with other 
registrants of Bt corn [for example, through the industry working group the Agricultural Biotechnology 
Stewardship Technical Committee (ABSTC)] to conduct the survey. 
 
In the U.S. Corn Belt, no anonymous grower survey is required for MON 89034 x MON 88017 Seed Blend 
corn if Monsanto can demonstrate that the industry-wide adoption of integrated refuge products (i.e., 
refuge seed blends) is equal to or greater than 70% of Bt corn acres in the Corn Belt. If industry- wide 
adoption of integrated refuge products (i.e., refuge seed blends) falls below 70% of Bt corn acres in the 
Corn Belt, an anonymous grower survey shall also be conducted in this region during the next growing 
season using a statistically representative sample of growers who plant 200 or more acres of corn, and 
grower surveys shall be continued every odd-numbered year until the industry-wide adoption of integrated 
refuge products (i.e., refuge seed blends) is again equal to or greater than 70% of Bt corn acres in this 
region. Monsanto may collaborate with other registrants of Bt corn (for example, through the industry 
working group the ABSTC) to compile the integrated refuge adoption data and to conduct the surveys. 
 
Alternatively, if Monsanto is not a participant of an industry working group (e.g., the ABSTC) and 
Monsanto’s sales of integrated refuge products are equal to or greater than 70% of Monsanto’s total Bt corn 
sales in the prior year, then no anonymous grower survey is required in the U.S. Corn Belt. If Monsanto’s 
sales of integrated refuge products fall below 70% of Monsanto’s total Bt corn sales, an anonymous grower

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survey shall also be conducted in this region during the next growing season using a statistically 
representative sample of growers who plant 200 or more acres of corn, and grower surveys shall be 
continued every odd-numbered year until sales of integrated refuge products (i.e., refuge seed blends) are 
again equal to or greater than 70% of Monsanto’s total Bt corn sales in this region. 
 
 A third party is classified as a party other than the registrant, the grower, or anyone else with a 
direct interest in IRM compliance for Bt corn. 
 
7. The survey shall be designed to provide an understanding of any difficulties growers encounter in 
implementing IRM requirements. An analysis of survey results must include the reasons, extent, and 
potential biological significance of any implementation deviations. 
 
8. The survey shall be designed to obtain grower feedback on the usefulness of specific educational tools and 
initiatives. 
 
9. In years in which the survey is conducted, Monsanto shall provide a final written summary of the results of 
the survey (together with a description of the regions, the methodology used, and the supporting data) to 
EPA on or before January 31st of the following year. Monsanto shall confer with other registrants and EPA 
on the design and content of the survey prior to its implementation. 
 
10. Monsanto shall revise, and expand as necessary, its compliance assurance program to take into account the 
information collected through the compliance survey, required under paragraphs 6–9 of this section, and 
from other sources. The changes shall address aspects of grower compliance that are not sufficiently high. 
Monsanto must confer with EPA prior to adopting any changes. 
 
11. Monsanto shall conduct and enhance an annual on-farm assessment program. Monsanto shall train its 
representatives who make on-farm visits with MON 89034 x MON 88017 Seed Blend corn growers to 
perform assessments of compliance with IRM requirements. There is no minimum corn acreage size for 
this program. Therefore, growers will be selected for this program from across all farm sizes. In the event 
that any of these visits result in the identification of a grower who is not in compliance with the IRM 
program, Monsanto shall take appropriate action, consistent with its phased compliance approach, to 
promote compliance. 
 
12. Monsanto shall implement a program for investigating legitimate tips and complaints that MON 89034 x 
MON 88017 Seed Blend corn growers are not in compliance with the IRM program. Whenever an 
investigation results in the identification of a grower who is not in compliance with the IRM program, 
Monsanto shall take appropriate action, consistent with its phased compliance approach. 
 
13. If a grower, who purchases MON 89034 x MON 88017 Seed Blend corn for planting, was specifically 
identified as not being in compliance during the previous year, Monsanto shall visit with the grower and 
evaluate whether the grower is in compliance with the IRM program for the current year. 
 
14. Annually, by January 31st each year, Monsanto must provide a report to EPA summarizing the MON 
89034 x MON 88017 Seed Blend compliance assurance program activities and results for the prior year 
and plans for the MON 89034 x MON 88017 Seed Blend compliance assurance program for the current 
year. Within one month of submitting this report to EPA, the registrant shall meet with EPA to discuss its 
findings. The report must inform EPA of the number of growers deemed ineligible to purchase Bt corn 
seed on the basis of continued non-compliance with the insect resistance management refuge requirements. 
Monsanto may elect to coordinate information with other registrants and report collectively the results of

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compliance assurance programs. 
 
15. Monsanto and the seed corn dealers for Monsanto must allow a review of the compliance records by EPA 
or by a State pesticide regulatory agency if the State agency can demonstrate that confidential business 
information, including the names, personal information, and grower license numbers of the growers, will 
be protected. 
 
16. Monsanto shall revise and expand its existing Compliance Assurance Program to include the following 
elements. The registrant may coordinate with other registrants in designing and implementing its 
Compliance Assurance Program. 
 
17. Monsanto will enhance the refuge education program throughout the seed delivery channel: 
 
 Ensure sales representatives, licensees, seed dealers, and growers recognize the importance of 
correct refuge implementation and potential consequences of failure to plant the required refuge. 
 
 Implement a “bag tag” that will be attached to all bags of MON 89034 x MON 88017 Seed 
Blend seed sold and delivered. The purpose of this bag tag is to remind growers that MON 
89034 x MON 88017 Seed Blend products require a separate 20% refuge in cotton growing 
areas. The PIP product label accepted by EPA must include how this information will be 
conveyed to growers via text and graphics. 
 
18. Monsanto will focus the majority of on-farm assessments on regions with the greatest risks for resistance: 
 
 Use Bt corn adoption, pest pressure information, and other available information to identify 
regions where the risk of resistance is greatest; 
 
 Focus approximately two-thirds of on-farm assessments on these regions, with the remaining 
assessments conducted across other regions where MON 89034 x MON 88017 Seed Blend is 
used. 
 
19. Monsanto will use its available MON 89034 x MON 88017 Seed Blend sales records and other information 
to refine grower lists for on-farm assessments of their compliance with refuge requirements: 
 
 Identify for potential on-farm assessment growers whose sales information indicates they have 
purchased MON 89034 x MON 88017 Seed Blend corn product but may have purchased little or 
no refuge seed from the registrant, licensee, or affiliated company. 
 
20. Monsanto will contract with third parties to perform on-farm assessments of compliance with refuge 
requirements: 
 
 The third-party assessors will conduct all first-time on-farm assessments as well as second-year 
on-farm assessments of those growers found out of compliance in a first- time assessment. 
 
21. Monsanto will annually refine the on-farm assessment program for the MON 89034 x MON 88017 Seed 
Blend corn product to reflect the adoption rate and level of refuge compliance for the product. 
 
22. Monsanto will follow up with growers who have been found significantly out of compliance under the on-
farm assessment program and are found to be back in compliance the following year:

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 All growers found to be significantly out of compliance in a prior year will annually be sent 
additional refuge assistance information for a minimum of two years by Monsanto, seed 
supplier, or third-party assessor, after completing the assessment process; 
 
 Monsanto will conduct follow-up checks on growers found to be significantly out of compliance 
within three years after they are found to be back in compliance; 
 
 A grower found with a second incident of significant non-compliance with refuge requirements 
for the Bt corn product within a five-year period will be denied access to Monsanto’s Bt corn 
products the next year. Similarly, seed dealers who are not fulfilling their obligations to 
inform/educate growers of their IRM obligations will lose their opportunity to sell Bt corn. 
 
e. Insect Resistance Monitoring and Mitigation Plan for MON 89034 x MON 88017 Seed Blend 
 
1. EPA is imposing the following conditions for the Cry1A.105 and Cry2Ab2 toxins expressed in 
MON 89034 x MON 88017 Seed Blend 
 
Monsanto will monitor for resistance to Cry1A.105 and Cry2Ab2 expressed in MON 89034 x MON 88017 
Seed Blend corn. The monitoring program shall consist of two approaches: (1) focused population sampling 
and laboratory testing; and (2) investigation of reports of less-than expected control of labeled insects. 
Should field-relevant resistance be confirmed, an appropriate resistance management action plan will be 
implemented. 
 
Focused Population Sampling 
 
Monsanto shall annually sample and bioassay populations of the key target pests: Ostrinia nubilalis 
(European corn borer; ECB), Diatraea grandiosella (southwestern corn borer; SWCB), and Helicoverpa zea 
(corn earworm; CEW). Sampling for the target pests will be focused in areas identified as those with the 
highest risk of resistance development (e.g., where lepidopteran active Bt hybrids are planted on a high 
proportion of the corn acres, and where the insect species are regarded as key pests of corn). Bioassay 
methods must be appropriate for the goal of detecting field-relevant shifts in population response to MON 
89034 x MON 88017 Seed Blend corn and/or changes in resistance allele frequency in response to the use of 
MON 89034 x MON 88017 Seed Blend corn and, as far as possible, should be consistent across sampling 
years to enable comparisons with historical data. 
 
The number of populations to be collected shall reflect the regional importance of the insect species as a pest, 
and specific collection regions will be identified for each pest. For ECB, a minimum of twelve (12) 
populations across the sampling region will be targeted for collection at each annual sampling. For SWCB, 
the target will be a minimum of six (6) populations. For CEW, the target will be a minimum of ten (10) 
populations. Pest populations should be collected from multiple corn-growing states reflective of different 
geographies and agronomic conditions. To obtain sufficient sensitivity to detect resistance alleles before they 
become common enough to cause measurable field damage, each population collection shall attempt to target 
400 insect genomes (egg masses, larvae, mated females, and/or mixed-sex adults), but a successful 
population collection will contain a minimum of 100 genomes. It is recognized that it may not be possible to 
collect the target number of insect populations or genomes due to factors such as natural fluctuations in pest

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density, environmental conditions, and area-wide pest suppression. 
 
The sampling program and geographic range of collections may be modified as appropriate based on changes 
in pest importance and for the adoption levels of MON 89034 x MON 88017 Seed Blend corn. EPA shall be 
consulted prior to the implementation of such modifications. 
 
Monsanto will report to EPA, on or before August 31st of each year, the results of the population sampling 
and bioassay monitoring program. 
 
Any incidence of unusually low sensitivity to the Cry1A.105 and/or Cry2Ab2 proteins in bioassays shall be 
investigated as soon as possible to understand any field relevance of such a finding. Such investigations shall 
proceed in a stepwise manner until the field relevance can be either confirmed or refuted, and results of these 
shall be reported to EPA annually on or before August 31st. The investigative steps will include the 
following: 
 
1) Re-test progeny of the collected population to determine whether the unusual bioassay 
response is reproducible and heritable. If it is not reproducible and heritable, no further action 
is required. 
 
2) If the unusual response is reproducible and heritable, progeny of insects that survive the 
diagnostic concentration will be tested using methods that are representative of exposure to 
MON 89034 x MON 88017 Seed Blend corn under field conditions. If progeny do not 
survive to adulthood, any suspected resistance is not field relevant and no further action is 
required. 
 
3) If insects survive steps 1 and 2, resistance is confirmed, and further steps will be taken to 
evaluate the resistance. These steps may include the following: 
a. Determining the nature of the resistance (i.e., recessive or dominant, and the level of 
functional dominance); 
b. Estimating the resistance allele frequency in the original population; 
c. Determining whether the resistance allele frequency is increasing by analyzing field 
collections in subsequent years sampled from the same site where the resistance 
allele(s) was originally collected; 
d. Determining the geographic distribution of the resistance allele by analyzing field 
collections in subsequent years from sites surrounding the site where the resistance 
allele(s) was originally collected. 
 
Should field-relevant resistance be confirmed, and the resistance appears to be increasing or spreading, 
Monsanto will consult with EPA to develop and implement a case-specific resistance management action 
plan. 
 
Investigation of Reports of Unexpected Levels of Damage by the Target Pests 
 
Monsanto will follow up on grower, extension specialist, or consultant reports of unexpected levels of 
damage by the lepidopteran pests listed on the pesticide label. Monsanto will instruct its customers to contact 
them if such incidents occur. Monsanto will investigate all legitimate reports submitted to the company or the 
company's representatives.

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EPA Reg. No. 524‐606 
OPP Decision No. 544526   
 
If reports of unexpected levels of damage lead to the suspicion of resistance in any of the key target pests 
(ECB, SWCB, and CEW), Monsanto will implement the actions described below, based on the following 
definitions of suspected resistance and confirmed resistance. 
 
Suspected Resistance 
 
EPA defines suspected resistance to mean field reports of unexpected levels of insect-feeding damage for 
which: 
 The corn in question has been confirmed to be lepidopteran-active Bt corn; 
 
 The seed used had the proper percentage of corn expressing Bt protein; 
 
 The relevant plant tissues are expressing the expected level of Bt protein; and 
 
 It has been ruled out that species not susceptible to the protein could be responsible for the damage, 
that no climatic or cultural reasons could be responsible for the damage, and 
 
 That there could be no other reasonable causes for the damage. 
 
EPA does not interpret suspected resistance to mean grower reports of possible control failures or suspicious 
results from annual insect monitoring assays, nor does EPA intend that extensive field studies and testing be 
undertaken to confirm scientifically the presence of insects resistant to MON 89034 x MON 88017 Seed 
Blend corn in commercial production fields before responsive measures are undertaken. 
 
If resistance is suspected, Monsanto will instruct growers to do the following: 
 
 Use alternative control measures in MON 89034 x MON 88017 Seed Blend corn fields in the 
affected region to control the target pest during the immediate growing season. 
 
 Destroy MON 89034 x MON 88017 Seed Blend corn crop residues in the affected region within one 
(1) month after harvest with a technique appropriate for local production practices to minimize the 
possibility of resistant insects over- wintering and contributing to the next season's target pest 
population. 
 
Additionally, if possible, and prior to the application of alternative control measures or destruction of crop 
residues, Monsanto will collect samples of the insect population in the affected fields for laboratory rearing 
and testing. Such rearing and testing shall be conducted as expeditiously as practical. 
 
Confirmed Resistance 
 
EPA defines confirmed resistance to mean, in the case of field reports of unexpected levels of damage from 
the key target pests, that all the following criteria are met: 
 
 There is >30% insect survival and commensurate insect feeding in a bioassay, initiated with 
neonate larvae, that uses methods that are representative of exposure to Bt corn hybrids under field 
conditions (ECB and SWCB only).

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EPA Reg. No. 524‐606 
OPP Decision No. 544526   
 In standardized laboratory bioassays using diagnostic concentrations of the Bt protein suited to the 
target pest in question, the pest exhibits resistance that has a genetic basis and the level of survivorship 
indicates that there may be a resistance allele frequency of ≥ 0.1 in the sampled population. 
 
 In standardized laboratory bioassays, the LC50 exceeds the upper limit of the 95% confidence interval 
of the LC50 for susceptible populations surveyed both in the original baselines developed for this pest 
species and in previous years of field monitoring. 
 
Response to Confirmed Resistance in a Key Target Pest as the Cause of Unexpected Levels 
of Damage in the Field 
 
When field resistance is confirmed (as defined above), the following steps will be taken by Monsanto: 
 
 EPA will receive notification within 30 days of resistance confirmation; 
 
 Affected customers and extension agents will be notified about confirmed resistance within 30 days; 
 
 Monitoring will be increased in the affected area and local target pest populations will be 
sampled annually to determine the extent and impact of resistance; 
 
 If appropriate (depending on the resistant pest species, the extent of resistance, the timing of 
resistance, and the nature of resistance, and the availability of suitable alternative control measures), 
alternative control measures will be employed to reduce or control target pest populations in the 
affected area. Alternative control measures may include advising customers and extension agents in 
the affected area to incorporate crop residues into the soil following harvest to minimize the 
possibility of over-wintering insects, and/or applications of chemical insecticides; 
 
 Unless otherwise agreed with EPA, stop sale and distribution of the relevant lepidopteran-active Bt 
corn hybrids in the affected area immediately until an effective local mitigation plan, approved by 
EPA, has been implemented; 
 
 Monsanto will develop a case-specific resistance management action plan within 90 days according 
to the characteristics of the resistance event and local agronomic needs. Monsanto will consult with 
appropriate stakeholders in the development of the action plan, and the details of such a plan shall be 
approved by EPA prior to implementation; 
 
 Monsanto will notify affected parties (e.g., growers, consultants, extension agents, seed 
distributors, university cooperators, and state/federal authorities as appropriate) in the region of 
the resistance situation and approved action plan; and 
 
 In subsequent growing seasons, maintain sales suspension and alternative resistance management 
strategies in the affected region(s) for the Bt corn hybrids that are affected by the resistant 
population until an EPA-approved local resistance management plan is in place to mitigate the 
resistance. 
 
A report on results of resistance monitoring and investigations of damage reports must be submitted to EPA, 
on or before August 31st of each year, for the duration of the registration.

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OPP Decision No. 544526   
2. EPA is imposing the following conditions for the Cry3Bb1 toxins expressed in MON 89034 x MON 
88017 Seed Blend corn: 
a) Investigation of Reports of Unexpected Levels of Damage (UXD) by Corn Rootworm (CRW): 
Performance Inquiries 
 
(1) Monsanto is required to investigate "performance inquiries" (i.e., reports of unexpected CRW 
damage to MON 89034 x MON 88017 Seed Blend corn) from growers. Fields (defined as a 
tract separated by permanent boundaries such as fences, permanent waterways, woodlands, 
croplines not subject to change because of farming practices, or other similar features) with 
unexpected damage that meet both of the criteria below must be subjected to the follow-up 
actions in part 2) below: 
 
a. The affected plants are confirmed to be MON 89034 x MON 88017 Seed Blend corn 
plants (take leaf samples to determine the presence of the CRW-active Bt protein); and 
 
b. Corn rootworm feeding caused root damage with a Node Injury Score (NIS) > 1.0 on 
at least 50% of plants surveyed in a transect sampling of the damaged site(s) within the 
field. 
 
(2) Follow-up actions (performance inquiries). For MON 89034 x MON 88017 Seed Blend corn 
fields meeting the criteria in part 1) above, Monsanto must take the following actions: 
 
a. Collect at least 250 (ideally 500 or more) CRW adult individuals from the damaged 
site within the field in question. Collections may be extended to the whole field, if 
necessary to obtain sufficient CRW adult individuals. Collected populations must be 
subjected to the steps described for "investigation of populations of concern" in section 
e(2)(b) below. 
 
o If collections are unsuccessful, visit affected farm or field the following year 
(assuming the grower continues to be a customer and repurchases seed and does 
not rotate the field to a non-host crop) and attempt to collect CRW adults. If beetles 
are not present the subsequent year, see section e(2)(b)(3)(c) below. 
 
b. Review with the grower their CRW management practices and provide CRW 
management recommendations including an assessment of corn fields with similar 
trait(s) adjacent to the affected corn field that are managed by the same grower. 
 
c. Use of single trait products containing the CRW traits in MON 89034 x MON 88017 
Seed Blend in fields with unexpected damage in previous years should be discouraged. 
Recommended management options include, but are not limited to, the following: 
 
o 
Primary option: 
 
• Rotation to non-host crop (e.g., soybean) 
 
o Secondary options: 
 
• Use of pyramided Bt corn products one or more different CRW PIP trait(s)

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OPP Decision No. 544526   
 
• Use of different single-CRW PIP traits (i.e., an alternative CRW-active PIP) 
 
• Use of non-Bt or non-CRW protected corn 
 
o Tertiary options: 
 
• If additional pest management need is determined beyond the secondary 
options listed above, additional corn rootworm control tools (e.g., soil 
insecticides, seed-applied insecticides, chemigation) should be used. 
 
d. If field(s) with UXD is/are planted to a non-host crop (e.g., soybean) the following 
year, then the area will be considered “mitigated” (as discussed in section e(2)(b)(3)(d) 
below) even if subsequent bioassay results show that the population was resistant. No 
further action will be required by Monsanto for the UXD case. 
 
(3) Monsanto must submit an annual report to EPA detailing activities related to investigations of 
unexpected damage (UXD). This report will include the information from the most recent and 
previous corn growing seasons: 
 
a. Information from the most recent season: 
 
o The number of UXD reports investigated. 
 
o Location (by county and state). 
 
o CRW sampling (number and location of populations collected). 
 
b. Information from the previous season: 
 
o The final disposition of UXD fields from the previous season (i.e., the management 
practices employed in response to UXD if the grower continues to be a customer. 
 
o Results from bioassays conducted on CRW populations from UXD fields where the 
primary management option, rotation to non-host crop, was not used. 
 
c. Grower information, such as farm addresses or other personally identifiable information, 
or other sensitive business/customer information must not be included in this report. This 
report must be submitted by November 30th each year. 
 
b) Investigation of Population of Concern 
 
1. Monsanto must conduct investigations of all CRW populations collected as part of the performance 
inquiry process in section e(2)(a) above. These investigations must include the use of an EPA-approved 
bioassay to determine if sampled CRW populations are resistant to Cry3Bb1. Acceptable assays must be 
able to function as diagnostic tools capable of distinguishing resistant populations from susceptible ones. 
Unless previously approved, Monsanto must consult with EPA on their bioassay prior to its use. 
 
2. A CRW population will be considered by EPA to be resistant to a CRW PIP toxin if the following

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OPP Decision No. 544526   
criteria are met and additional collections and testing are not deemed to be necessary (based on part 3) 
below): 
 
a. An initial performance inquiry investigation results in a finding of Unexpected Damage; and 
 
b. Where green tissues are available and if plants are unusually stressed due to agronomic and/or 
environmental factors, Bt protein levels in affected plants are found to be within the 
documented range for that hybrid (if data are available); and 
 
c. Either (A): On-plant bioassays of insect collections from the UXD fields result in the 
following two statistically relevant comparisons 
 
i. A statistically significant difference in measures of either mortality or sublethal effects 
(growth/development) between the field population and a relevant susceptible control 
population (i.e., one that responds as a typical susceptible field population) on Bt corn 
containing the single PIP and/or lack of a statistically significant difference in measures 
of mortality or sublethal effect between the field population and a resistant positive 
control population
1; and 
 
ii. A lack of a statistically significant difference in the same measures of the field population 
raised on Bt corn containing the single PIP and non-Bt corn plants. 
 
Or (B): Sublethal seedling bioassay of insect collections from the UXD fields result in two 
statistically relevant comparisons 
 
i. A statistically significant difference in measures of sublethal effects 
(growth/development) for populations on Bt corn containing the single PIP (normalized 
using non-Bt) seedlings between the field population and a relevant susceptible control 
population where available or historical field populations and/or lack of a statistically 
significant difference in measures between the field population and a resistant positive 
control population1; and 
 
ii. A lack of a statistically significant difference in the same measures of the field 
population raised on Bt corn seedlings containing the single PIP and non-Bt corn 
seedlings 
 
Or (C): Diet-based bioassays of insect collections from the UXD fields result in two 
statistically relevant comparisons 
 
i. A statistically significant difference in measures of lethal or sublethal effects 
(growth/development) on diet containing the Bt protein (diagnostic concentration or 
concentration-response measures) between the field population and a relevant 
susceptible control population where available or historical field populations and/or 
lack of a statistically significant difference in measures between field population and a 
resistant positive control population†; and 
 
ii. Either a lack of a statistically significant difference in the same measures of the field 
                                                             
1 If a resistant positive control population is not available or accessible, Monsanto must consult with EPA prior to initiating bioassays 
and work to develop an appropriate resistant positive control population.

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OPP Decision No. 544526   
population exposed to diet containing the Bt protein (diagnostic concentration) and diet 
not containing the Bt protein and/or lack of a statistically significant difference in 
measures between the field population and a resistant positive control population, or 
lack of a statistically significant concentration and/or lack of a statistically significant 
difference in concentration response between the field and a resistant positive control 
population1. 
 
3. Mitigation, as detailed in section e(2)(c) below, is required for any CRW population that meets EPA’s 
resistance criteria above for any of the CRW traits in MON 89034 x MON 88017 Seed Blend, unless the 
circumstances described below are applicable. 
 
a. To minimize the potential for incorrectly reaching a conclusion of resistance, another year of 
CRW adult collections and additional testing is needed to determine resistance if: 
 
i. The results of the bioassays are inconclusive (e.g., the results of the statistical analysis are 
unclear because of low sample sizes) or 
 
ii. Another reasonable explanation for the unexpected damage exists (e.g., high pest pressure 
and/or high plant stress). 
 
b. In these cases, Monsanto and EPA will discuss and align on next steps before reaching any 
resistance conclusion. 
 
c. If CRW collections are not possible in the current year or subsequent year due to successful 
management practices, then no further investigation is needed. The population would be 
considered "mitigated" meaning, in this case, that the population is suppressed or extirpated for 
the UXD field. However, EPA recommends that Monsanto continue to be vigilant in areas where 
CRW populations were successfully mitigated. 
 
d. If a UXD field receives non-host crop (e.g., soybean) rotation the following year as described in 
Section e(2)(a)(2) above, no additional mitigation is subsequently required. 
 
c) Mitigation of CRW Populations Meeting EPA’s Resistance Criteria 
 
1. For any CRW population found to be resistant to one or more of the CRW traits in MON 89034 x MON 
88017 Seed Blend under EPA’s criteria described in section e(2)(b) above, Monsanto must take the 
following steps: 
 
a) Monsanto must inform EPA of all the results of the bioassays as soon as possible, but at least 
within 30 days if measures are triggered. 
 
b) The mitigation action area (MAA) is defined as the growers’ farming operation up to a ½ mile 
radius from the damaged site that produced the resistant population. 
 
c) Within 30 days of informing EPA of the results of the bioassays, Monsanto must notify state 
extension agents and crop consultants who operate within the county in which resistance was 
identified. Information shared must include identification of the county in which resistance was 
detected and trait(s) affected. 
 
d) Within the MAA, Monsanto must do the following:

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i. Prior to finalizing the grower’s seed order for the following season, inform the affected 
grower and other registrants that hold registrations containing the compromised trait(s). 
Monsanto must also inform neighboring growers if those growers are customers of 
Monsanto. Information shared must include identification of the county in which 
resistance was detected and trait(s) affected; 
 
ii. Discontinue sales/planting of products containing the compromised trait(s) without 
additional/alternative (i.e. non-compromised) CRW traits until resistance has been 
demonstrated to have been mitigated. Other Bt registrants selling such products in the 
MAA are encouraged, but cannot be required, to follow suit; 
 
iii. Monsanto must monitor the resistant population in the MAA, as long as grower remains a 
customer of the company, until mitigation has been demonstrated as described in part e 
below unless otherwise agreed with EPA. 
 
iv. Require any pyramids sold by Monsanto containing the compromised trait(s) be planted 
with a 20% refuge until resistance has been demonstrated to have been mitigated. Other 
Bt corn registrants selling such pyramided products in the MAA are encouraged, but 
cannot be required by this term of registration, to follow suit; 
 
v. For Monsanto’s affected customer’s field(s), the mitigation goal is to control the resistant 
CRW population. Within the MAA Monsanto shall encourage the use of “Mitigation 
Practices” including: 
 
1. Primary option: Rotation to a non-host crop (e.g., soybean); 
 
2. Secondary options: 
 
a. Use of pyramided Bt corn products with different CRW PIP traits; 
 
b. Use of different single-CRW PIP traits (i.e., an alternative CRW-active PIP); 
 
c. Use of non-Bt corn or non-CRW protected corn (with/without soil-applied 
insecticide); 
 
3. Tertiary options: 
 
a. If additional pest management need is determined beyond the secondary 
options listed above, additional CRW control tools (e.g., soil insecticides, 
seed-applied insecticides, chemigation) should be used; 
 
b. Use of foliar applications to control adults (when appropriate economic 
thresholds have been met) may be used in conjunction with one or more of 
the above. 
 
e) A resistant CRW population in the MAA will be considered mitigated if one of the following 
criteria is met:

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OPP Decision No. 544526   
i. Corn fields within the MAA are rotated to a non-host crop (e.g. soybean) for one 
growing season. 
 
ii. After implementation of mitigation practices (part d.v above), resistance 
monitoring (sampling) is conducted but few CRW are found (i.e., <0.1 adults per 
plant) and environmental conditions (e.g., weather) are unlikely to be responsible 
for the lack of adult CRW presence. If environmental conditions are a factor, then 
monitoring should continue for another season. 
 
iii. After implementation practices (part d.v above), resistance monitoring (sampling) 
is conducted, CRW are found and collected, and bioassays (section e(2)(b)(2) 
above) show that the population susceptibility to the compromised trait(s) has 
returned to baseline levels. 
 
f) The mitigation actions in part d above can be lifted, and growers can resume the use of MON 
89034 x MON 88017 Seed Blend corn as a primary tool for CRW management in the MAA, 
only when Monsanto demonstrates that successful mitigation as described in part e above has 
been achieved. 
 
2. Based on further research to understand CRW resistance to Bt PIPs, EPA will consider refinements to 
the resistance mitigation program. Such research may include characterizing the genetics of resistance 
(e.g., number of genes, functional dominance, mechanism of resistance, and cross-resistance) and the 
biology of resistant insects (e.g., fitness in the presence and absence of the product), and other control 
tactics. 
 
f. Refuge Assurance Program for MON 89034 x MON 88017 Seed Blend 
 
Monsanto must implement a Blended Seed Refuge Assurance Program designed to ensure MON 89034 x 
MON 88017 Seed Blend corn products are formulated with the appropriate rate of refuge seeds. The 
program must include the following four elements: 
 
1. Trait purity check on seed lots prior to blending; 
 
2. ISO 9000 Standard Operating Procedures for the blending process; 
 
3. Calibration of blending equipment; and 
 
4. Records and data retention records for seed blend products. 
 
 Calibration records - Monsanto will retain documentation for a specified period of time on the 
equipment calibration including the procedure, when it was conducted and the results. 
 
 Blend proportion records (weight and kernel based) - Monsanto w
ill retain documentation for a 
specified period of time on the kernel per pound data of the components, the calculations to 
determine the proportions based on weight and the actual weights that are blended together to 
make up a MON 89034 x MON 88017 Seed Blend corn product by seed lot. 
 
All records must be maintained at the Monsanto blending facility and must be available for the EPA review 
upon request.

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OPP Decision No. 544526   
 
 
g. Annual Reporting Requirements for MON 89034 x MON 88017 Seed Blend 
 
The following annual reports must be submitted: 
 
1. Compliance Assurance Plan: Compliance Assurance Program activities, including IRM Grower Survey 
results (only for years in which the survey was conducted) and on-farm assessment results for the prior 
year and plans for the compliance assurance program for the current year, on or before January 31st each 
year. 
 
2. Insect Resistance Monitoring Results (Cry1A.105 and Cry2Ab2 only): results of monitoring and 
investigations of damage reports, August 31st of each year. 
 
3. IPM Stewardship Program (Cry3Bb1 only): Activities conducted under the IPM stewardship program, 
including an anonymous survey of grower practices, adoption levels of the various crop rotation options 
(if employed) and other elements of the stewardship program, on or before January 31st of each year. 
 
4. Unexpected Damage Investigations (Cry3Bb1 only): Activities related to investigations of unexpected 
damage (UXD), including number and location of UXD cases, insect sampling, bioassays, and final 
disposition of UXD fields from the most recent and previous corn growing seasons, on or before 
November 30th of each year. 
 
 
Should you wish to add/retain a reference to your company’s website on your label, then please be aware that 
the website becomes labeling under FIFRA and is subject to review by the EPA. If the website is false or 
misleading, the product will be considered to be misbranded and sale or distribution of the product is unlawful 
under FIFRA section 12(a)(1)(E). 40 CFR § 156.10(a)(5) lists examples of statements the EPA may consider 
false or misleading. In addition, regardless of whether a website is referenced on your product’s label, claims 
made on the website may not substantially differ from those claims approved through the registration process. 
Therefore, should the EPA find or if it is brought to our attention that a website contains false or misleading 
statements or claims substantially differing from the EPA-approved registration, the website will be referred to 
the EPA’s Office of Enforcement and Compliance Assurance. 
 
Your release for shipment of this product constitutes acceptance of these conditions. If you fail to satisfy these 
terms and conditions, the EPA will consider appropriate regulatory action including, among other things, 
cancellation under FIFRA section 6(e). 
 
A stamped copy of the label is enclosed for your records. A previously approved Confidential Statement of 
Formula dated August 10, 2013 is on file for this product.

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EPA Reg. No. 524‐606 
OPP Decision No. 544526   
 
If you have any questions, please contact Matthew Weiner by phone at (703) 347-0333 or by email at 
weiner.matthew@epa.gov. 
 
 
 
 S i n c e r e l y , 
 
 
 A l a n R e ynolds, Team Leader 
 E m e r g i n g T e c hnologies Branch 
Biopesticides and Pollution 
 P r e v e n t i o n D i v i s i o n ( 7 5 1 1 P ) 
Office of Pesticide Programs 
 
 
Enclosure

Plant-Incorporated Protectant Label 
 
MON 89034 × MON 88017 Seed Blend 
 
 
 (OECD Unique Identifier: MON-89Ø34-3 × MON 88Ø17-3) 
 
Active Ingredients: 
Bacillus thuringiensis Cry1A.105 protein and the genetic material necessary for its p roduction 
(Vector PV-ZMIR245) in MON 89034 × MON 88017 corn (OECD Unique Identifier: MON-
89Ø34-3 × MON-88Ø17-3) ............................................................................................ ≤0.0024%* 
Bacillus thuringiensis Cry2Ab2 protein and the genetic material necessary for its pro duction 
(Vector PV-ZMIR245) in MON 89034 × MON 88017 corn (OECD Unique Identifier: MON-
89Ø34-3 × MON-88Ø17-3) ............................................................................................ ≤0.0057%* 
Bacillus thuringiensis Cry3Bb1 protein and the genetic material necessary for its pro duction 
(Vector PV-ZMIR39) in MON 89034 × MON 88017 corn (OECD Unique I dentifier: MON-
89Ø34-3 × MON-88Ø17-3) ............................................................................................ ≤0.0070%* 
Other Ingredient: 
CP4 EPSPS protein (5-enolpyruvylshikimate-3-phosphate synthase) and the genetic material 
necessary for its production (Vector PV-ZMIR39) in MON 89034 × MON 88017 corn (OECD 
Unique Identifier: MON-89Ø34-3 × MON-88Ø17-3) ................................................... ≤0.0069%* 
*Percentage (wt/wt) on a dry weight basis whole plant (forage) 
 
MON 89034 × MON 88017 Seed Blend with this refuge configuration contains up to 90% 
MON 89034 × MON 88017 mixed with at least 10% non-Bt corn within a single lot of seed. 
 
KEEP OUT OF REACH OF CHILDREN 
 
CAUTION 
 
EPA Registration No. 524-606 
EPA Establishment No. 524-MO-002 
 
Monsanto Company 
800 North Lindbergh Blvd. 
St Louis, MO 63167 
 
NET CONTENTS__________ 
 
 
03/13/2019
524-606

DIRECTIONS FOR USE 
 
It is a violation of Federal law to use this product in any man ner inconsistent with its labeling. This 
product must be used as specified in the terms and conditions of the registration. 
 
MON 89034 × MON 88017 Seed Blend protects corn crops from leaf, stalk, and ear damage caused by 
lepidopteran corn pests listed on this label and root damage caused by corn rootworm larvae listed on this 
label. In order to minimize the risk of these pests developing resistance to MON 89034 × MON 88017 
Seed Blend corn, an insect resistance management (IRM) plan mus t be implemented as defined in the 
registration terms and conditions. 
 
Grower agreements will specify that growers must adhere to the refuge requirements that will be 
described on the bag or bag-tag for MON 89034 × MON 88017 Seed Blend corn or other applicable 
product use documents. 
 
Corn seed bags or bag tags for products containing MON 89034 × MON 88017 Seed Blend must include 
the refuge requirement. 
 
 
INSECT RESISTANCE MANAGEMENT 
 
Growers are instructed to read information on insect resistance management in the IRM Grower Guide or 
the bag or bag-tag. 
 
The seed producer must ensure a minimum of 10% non-Bt refuge seed is included with the MON 89034 × 
MON 88017 in each lot of seed corn. 
 
The IRM Grower Guide for MON 89034 × MON 88017 Seed Blend, and comparable information 
presented on the product bag or bag-tag, must contain the following information: 
 
This product is a seed mixture containing up to 90% MON 89034 × MON 88017 and a minimum of 10% 
non-Bt seed that when planted creates an interspersed refuge within the field. The interspersed refuge can 
only be used by planting seed corn specifically generated by qu alified seed producers/conditioners 
licensed by the registrant. The refuge seed in the seed mixtur e may not be treated with seed-applied 
insecticides for corn rootworm (CRW) control unless the MON 890 34 × MON 88017 seed in the seed 
mixture receives an equivalent seed treatment for CRW control. 
 
The seed mix refuge option for MON 89034 × MON 88017 Seed Blend satisfies the refuge 
requirements in all areas other than in the cotton-growing area where corn earworm is a significant 
pest as defined below. 
 
Additional refuge requirements in the cotton-growing area where c o r n e a r w o r m i s a s i g n i f i c a n t 
pest 
 
In the cotton-growing area where corn earworm is a significant pest, as defined below, MON 89034 × 
MON 88017 Seed Blend requires the planting of an additional 20% structured refuge ( i.e., 20 acres of 
non-Bt corn for every 80 acres of MON 89034 × MON 88017 Seed Blend planted). 
 
The 20% refuge must be planted with corn hybrids that do not co ntain Bt technologies for the control of 
corn rootworms or corn borers.

The 20% refuge and the MON 89034 × MON 88017 Seed Blend should be sown on the same day or with 
the shortest window possible between planting dates to ensure t hat corn root development is similar 
among varieties. 
 
The 20% refuge may be planted as an in-field or adjacent ( e.g., across the road) refuge or planted as a 
separate block that is within ½ mile of the MON 89034 × MON 880 17 Seed Blend field. In-field refuge 
options include blocks, perimeter strips (i.e., strips around the field), or in-field strips. If perimeter o r in-
field strips are implemented, the strips must be at least four (4) consecutive rows wide. The refuge can be 
protected from lepidopteran damage by use of non- Bt insecticides if the population of one or more target 
pests of MON 89034 × MON 88017 Seed Blend in the refuge exceeds economic thresholds. In addition, 
the refuge can be protected from CRW damage by an appropriate s eed treatment or soil insecticide. 
Economic thresholds will be determined using methods recommende d by local or regional professionals 
(e.g., Extension Service agents and crop consultants). 
 
The cotton-growing area requiring the additional 20% refuge con sists of the following states: Alabama, 
Arkansas, Georgia, Florida, Louisiana, North Carolina, Mississi ppi, South Carolina, Oklahoma (only the 
counties of Beckham, Caddo, Comanche, Custer, Greer, Harmon, Ja ckson, Kay, Kiowa, Tillman, and 
Washita), Tennessee (only the counties of Carroll, Chester, Cro ckett, Dyer, Fayette, Franklin, Gibson, 
Hardeman, Hardin, Haywood, Lake, Lauderdale, Lincoln, Madison, Obion, Rutherford, Shelby, and 
Tipton), Texas (except the counties of Carson, Dallam, Hansford, Hartley, Hutchinson, Lipscomb, Moore, 
Ochiltree, Roberts, and Sherman), Virginia (only the counties o f Dinwiddie, Franklin City, Greensville, 
Isle of Wight, Northampton, Southampton, Suffolk City, Surrey, and Sussex), and Missouri (only the 
counties of Dunklin, New Madrid, Pemiscot, Scott, and Stoddard). 
 
These refuge requirements do not apply to seed increase/propagation of inbred and hybrid seed. 
 
Corn Insects Controlled or Suppressed 
 
European corn borer (ECB) Ostrinia nubilalis 
Southwestern corn borer (SWCB) Diatraea grandiosella 
Southern cornstalk borer (SCSB) Diatraea crambidoides 
Corn earworm (CEW) Helicoverpa zea 
Fall armyworm (FAW) Spodoptera frugiperda 
Stalk borer Papaipema nebris 
Lesser corn stalk borer Elasmopalpus lignosellus 
Sugarcane borer (SCB) Diatraea saccharalis 
 
Western corn rootworm (WCRW) Diabrotica virgifera virgifera 
Northern corn rootworm (NCRW) Diabrotica barberi 
Mexican corn rootworm (MCRW) Diabrotica virgifera zeae 
 
Sales of corn hybrids that contain Monsanto’s Bt corn plant incorporated protectants must be 
accompanied by either a Grower Guide or bag tag which includes information on planting, production and 
insect resistance management. 
 
MON 89034 × MON 88017 Seed Blend is a product of Monsanto’s research program, offering unique 
genetic characteristics for specific grower needs and may be protected by one or more U.S. patents found at 
the following web page: www.monsantotechnology.com.