Figure 1. CRW larvae feeding on corn root. Photo courtesy of Jim Kalisch
Figure 2. CEW feeding in a straight line down the ear. Corn earworms are cannibalistic so there is typically only one found per infested ear.
Table 1. Yield losses caused by ECB for various corn stages, based on physiological stresses and not stalk breakage or ear dropping (Krupke, Bledsoe, & Obermeyer, 2010).
Figure 3. ECB larvae tunneled into corn stalk.
Figure 4. Fall armyworm feeding on vegetative tissue.
Figure 5. Corn leaf infected with southern rust. Note round to oval pustules, light brown to orange in color.
Figure 6. NCLB lesions on corn leaf.
Figure 7. Close up of NCLB lesion.
Figure 8. Stalk depicting both anthracnose and Gibberella stalk rot.
Figure 9. GLS lesions (rectangular shape).
Figure 10. SCLB lesions (irregular shape).
Figure 11. Tar spot of corn leaf. (Photo courtesy of Martin Chilvers.)
Krupke, C. H., Bledsoe, L. W., & Obermeyer, J. L. (2010). European Corn Borer in Field Corn. Purdue Extension.
Author: Madeline Henrickson
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