About Southwestern Corn Borer
A pale moth whose larvae bore into corn stalks and girdle stems from the inside, causing extensive lodging. It is a major corn pest in the southern Great Plains of the United States.
Did You Know?
Overwintering larvae girdle the corn stalk from the inside, deliberately weakening it so the stalk falls and provides insulated shelter.
How to Identify Southwestern Corn Borer
Southwestern Corn Borer (Diatraea grandiosella) belongs to the order Lepidoptera, family Crambidae. Adults typically measure 25-35 mm wingspan.
Southwestern Corn Borer Habitat
Southwestern Corn Borer is found in farmland habitats, particularly across Southern United States, Mexico. This species has adapted to thrive in its preferred environment, where it can find suitable food sources and shelter.
Southwestern Corn Borer Diet and Feeding
Southwestern Corn Borer is a herbivore, feeding on plant material including leaves, stems, flowers, and other vegetation. Herbivorous insects play a significant role in ecosystems by influencing plant growth and serving as a food source for predators.
Where Is Southwestern Corn Borer Found?
Southwestern Corn Borer can be found in Southern United States, Mexico, where it inhabits farmland environments. Its distribution is influenced by climate, food availability, and habitat suitability.
Distribution Map
Where Southwestern Corn Borer can be found
Is Southwestern Corn Borer Dangerous?
Southwestern Corn Borer is generally harmless to humans. It does not bite or sting and poses no significant health risk. Like most insects, it prefers to avoid human contact and will typically flee rather than confront a perceived threat.
Southwestern Corn Borer Role in Nature
Southwestern Corn Borer is part of the food web as a primary consumer, feeding on plant material. It serves as an important food source for birds, bats, amphibians, and other insectivores, connecting plant energy to higher trophic levels.
Seasonal Activity
Frequently Asked Questions About Southwestern Corn Borer
What does Southwestern Corn Borer look like?
The Southwestern Corn Borer typically measures 25-35 mm wingspan.
Where is Southwestern Corn Borer found?
The Southwestern Corn Borer is found in Southern United States, Mexico and typically inhabits farmland environments.
What does Southwestern Corn Borer eat?
The Southwestern Corn Borer feeds on plant material including leaves, stems, and other vegetation.
Is Southwestern Corn Borer dangerous to humans?
The Southwestern Corn Borer is generally harmless to humans. It does not bite or sting and poses no significant health risk.
Is Southwestern Corn Borer endangered?
The Southwestern Corn Borer is currently classified as Not Evaluated by conservation assessments. Habitat loss and environmental changes are among the primary threats to its population.
What is an interesting fact about Southwestern Corn Borer?
Overwintering larvae girdle the corn stalk from the inside, deliberately weakening it so the stalk falls and provides insulated shelter.
Cite This Page
APA:
InsectDiscover. (2026). Southwestern Corn Borer (Diatraea grandiosella). Retrieved from https://insectdiscover.com/insect/southwestern-corn-borer
MLA:
"Southwestern Corn Borer." InsectDiscover, https://insectdiscover.com/insect/southwestern-corn-borer.