In 2010, the researchers noted that 38 incidents had occurred during 2009, when the national corn harvest set a new record.

That year, people lost their vital corn harvest as these pests were around for many days.

In a primitive agricultural economy savings might take the form of holding back the best of the corn harvest as seed corn for the next planting season.

The sorghum and corn harvests comprise less than 10% of the annual requirement of 250,000 tons.