Nicentrites testaceipes - lesser maize billbug
Geraeus senilis - large maize billbug

Nature of damage

• Billbugs feed in the whorls, scratching sections of the leaves.
• Billbug grubs feed on the roots, weakening them.

Signs

• White flecks on leaves.
• Lodging.

Factors favoring development

• Forage or cover crops preceeding maize.

Geographic distribution

• Mainly in northern South America, the West Indies, and tropical North America.

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