Posting an FDMS Docket without an FR Notice 

MEMORANDUM

SUBJECT: Docket EPA-HQ-OPP-2010-0405 Open for Public Access 

DOCKET TITLE: Pesticide Product; Registration Issuances For Pip Seed Blends 

FROM: Mike Mendelsohn, Senior Regulatory Specialist 

 Microbial Pesticides Branch 

 Biopesticides and Pollution Prevention Division 

 

Thru: W. Michael McDavit, Acting Director 

 Biopesticides and Pollution Prevention Division 

 This memorandum authorizes the posting of the document(s) in docket EPA-HQ2010-0405 to Regulations.gov for public access. Please note that this action is part of 

the public participation process for registration actions. 

The following document(s) will be available for public comment from April 30, 2010 to 

June 1, 2010. 

A. EPA Biopesticide Regulatory Action Document Optimum AcreMax Bt Corn 

Seed Blends, April 30, 2010. 

B. OAM1 10% Blend Label 

C. OAMRW 10% Blend label 

The following document(s) serve as additional background to the Optimum AcreMax Bt 

Corn Seed Blends BRAD. 

A. EPA Science Assessment of Pioneer’s modeling addenda (MRIDs 478710-01, 

478879-01, and 479108-01) in support of their application of registration for 

Optimum AcreMax1 Insect Protection, 2/4/2010. 

B.EPA Science risk assessment to evaluate the durability of a 10% Cry34/35 seed 

 blend refuge deployment of Cry34/35 corn relative to the durability predicted for 

 a 20% block in regards to Pioneer/DuPont’s Optimum AcreMax1 (EPA Reg. No. 

 29964-A), 4/22/2010. 
2

C. EPA Review of ABSTC's 2007 and 2008 Com Insect Resistance Management 

Compliance Assurance Program [EPA Registration Nos. 524-489, 68467-2, 67979-

1, 29964-3,524-528,524-55 1, 68467-5,67979-5, 29964-4, 524-545, 524-552, 68467-

6,67979-8, and 29964-5; MRlDs 4733396-01 and 476633-01, 4/15/2009. 

D. EPA Review of Pioneer’s Benefits Document in Support of a Sec(3) Product 

Registration for Optimum® AcreMaxTM 1 Insect Protection, also known as Stack 

Herculex XTRA (Cry34/35Ab1 +Cry1F) with Herculex I (Cry1F, refuge seed for 

CRW) [MRID 473567-10 and supplemental data], 9/22/2008. 

E. EPA MRID Numbers 47663301, 47339601, 47683801, 47910801, 47887901, 

47871001, 47356710, 48066001, 48075401, and 48076501. 

F. Grant RH and KP Seevers. 1989. Local and long-range movement of adult 

western corn rootworm (Coleoptera: Chrysomelidae) as evidenced by washup 

along southern lake Michigan shores. Envir. Entomology, Vol. 18 (2): 266-272 

G. Meinke LJ, TW Sappington, DW Onstad, T Gullemaud, NJ Miller, J 

Komaromi, N Levay, L Furian, J Kiss, and F Toth. 2009. Western corn 

rootworm (Diabrotica virgifera virgifera LeConte) population dynamics. 

Agricultural and Forest Entomology, Vol.11: 29-46 

H. Naranjo SE. 1990. Comparative flight behavior of Diabrotica virgifera virgifera 

and Diabrotica barberi in the laboratory. Ent. Experimantalis et Aplicata, Vol. 

87: 383-394 

I. Nowatzki TJ, N Bradley, KK Warren, S Putnam, LJ Meinke, DC Gosselin, FE 

Harvey, TE Hunt, and B Siegfried. 2003. In-field labeling of western corn 

rootworm adults (Coleoptera: Chrysomelidae) with Rubidium. Journal of 

Economic Entomology, Vol. 96(6): 1750-1759. 

J. Pioneer 5/22/2008 Letter and Supplemental Data to MRID No. 47356710. 

K. Scott IA, JL Spencer, TR Mabry, and E Levine. 2004. Influence of atmospheric 

conditions on high-elevation flight of Western corn rootworm (Choleoptera: 

Chrysomelidae). Environmental Entomology, Vol. 33(3):650-656 

L. Van Woerkom GJ, FT Turpin, & JR Barret Jr. 1983. Wind effect on western 

corn rootworm (Coleoptera: Chrysomelidae) flight behavior. Environmental 

Entomololgy, Vol 12: 196-200 

M. Witkowski JF, JC Owens, and JJ Tollefson. 1975. Diel activity and vertical 

flight distribution of adult western corn rootworms in Iowa cornfields. Journal 

of Economic Entomology, Vol. 68: 351-352. 

Should you have any questions regarding this memorandum, please contact me at (703) 

308-8715, or via email at mendelsohn.mike@epa.gov.