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Where Is Bt Corn Grown?
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Understanding the science

How much Bt corn pollen does it take to have a toxic
impact on monarchs?

Do monarch caterpillars
and corn pollen overlap?

Where is Bt corn grown?

Where is milkweed found?

How much Bt corn pollen is found on milkweed leaves?

Where do monarch
caterpillars feed?

What does this mean
when you put it all together?
Butterflies and Bt corn. Allowing Science to Guide Decisions.
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Where is Bt Corn Grown?

About 28 percent of the crop and pastureland within the North American Corn Belt – an area extending from eastern Kansas/Nebraska to western New York – is planted in corn (Sears et al., 2001). In 2001, 26 percent of North American cornfields were planted with Bt varieties, and the vast majority of those were planted with events MON810 and Bt11 (see Figure 3).
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