Corn Rootworm Refuge Acreage Calculator

	20% refuge Sales and planting prohibited
This map shows approximate locations of Bt Corn Rootworm refuge requirements.
For more information about Bt Corn Rootworm refuge requirements, please use the Herculex® RW Product Use Guide (PDF 371 KB) or YieldGard® Rootworm Product Use Guide .

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 Corn Rootworm corn acres based on Step #3	acres

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

Refuge Design:

Block Option A	Block Option B


Split Planter (Strips)	Perimeter
Minimum of 6 rows; 12 rows preferred	Minimum of 4 rows
Adjacent Option A	Adjacent Option B
	Separated by road, path, ditch, etc.; but not by another field of corn.

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

YGRW

® YieldGard and the YieldGard Rootworm 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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