Neotropical corn borer

Also known as Neotropical maize borer, Neotropical corn stalk borer
Diatraea lineolata

Damage to plants

  • Young plants suffer from feeding in the whorl and dead heart (destruction of the growing point).
  • Tunneling of the stems, causing interference with nutrient and water translocation.
  • Boring in the stems leading to plant lodging.
  • Boring in the ears, which can increase prevalence of ear rots.


  • Dead heart.
  • Perforations and feeding damage on emerging leaves.
  • Crop lodging.

Factors favoring insects / pest development

  • Reduced tillage methods, which enable the larvae to overwinter in the diapause stage.
  • Mild winters, which favor survival of overwintering larvae.

Geographic distribution

  • This borer occurs in Central America, the Caribbean region and northern parts of South America.

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