fall armyworm resistance North Carolina corn Cry1F

FALL ARMYWORM can sometimes be confused with corn earworm. Falls are smoothed bodied and have a square dot pattern near the end of their body.

Cry1F resistant fall armyworm confirmed in North Carolina corn

• Corn hybrids planted in North Carolina that express this toxin include Genuity SmartStax, Herculex, and Optimum Intrasect. Both Genuity SmartStax and Optimum Intrasect also express other Bt toxins.

The first discovery of fall armyworm in corn expressing the Cry1F toxin was made in Hyde County during August 2013. 

Corn hybrids planted in North Carolina that express this toxin include Genuity SmartStax, Herculex, and Optimum Intrasect. Both Genuity SmartStax and Optimum Intrasect also express other Bt toxins.

Widestrike cotton also expresses Cry1Ac in addition to Cry1F.

Implications this may have in the future will be discussed in this article.

Continue reading at http://www.nccrops.com/.

 

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