Bt Corn Borer Refuge Acreage Calculator

	20% refuge 50% refuge Sales and planting prohibited
This map shows approximate locations of Bt Corn Borer refuge requirements.
For more information about Bt Corn Borer refuge requirements, please use the Herculex I Product Use Guide (PDF 362 KB) or the YieldGard® Corn Borer Product Use Guide (PDF 50 KB).

Calculate the number of refuge acres for your farm:
1.	Select your state:
2.	Select county:
3.	What are your planned total corn acres?	acres
4.
	Maximum Bt Corn Borer corn acres based on Step #3	acres

5.	What are your planned total Bt Corn Borer corn acres?
6.
	Refuge acres requirement based on Step #5:

Refuge Design:

	Separate fields of non-Bt corn planted within 1/2 mile of each Bt corn field (1/4 mile or closer preferred).
	Planting pivot corners to non-Bt corn.
	Splitting planter to alternate a minimum of 4 rows or more (6 rows preferred) of non-Bt corn with Bt corn.
	Large non-Bt corn strips or blocks within the Bt field.
	Planting field perimeters or end rows to non-Bt corn.

Herculex® Insect Protection technology by Dow AgroSciences and Pioneer Hi-Bred. ® Herculex and the HX logo are registered trademarks of Dow AgroSciences LLC.

YGCB

® YieldGard and the YieldGard Corn Borer design are registered trademarks used under license from Monsanto Company.

YGPL

® YieldGard and the YieldGard Plus design are registered trademarks used under license from Monsanto Company.

^ EXPORT APPROVAL NOTICE
Although fully approved in the United States, Canada and Japan, grain and certain grain by-products from THESE HYBRIDS MAY NOT BE APPROVED for all markets. Pioneer customers are advised to discuss trait acceptance policies with their local grain handler prior to delivering grain containing biotech traits.

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