Maize - Zambia's most favoured crop - is under attack from alien armyworms. The pest has already invaded more than 10 percent of farms in the country. The army worms are caterpillars that "march" across the landscape in large groups feasting on young plants, leaving devastation in their wake.
In Zambia, maize is the primary staple crop, and over 90 percent of smallholders rely on it for food security and income. As with other countries in the region, maize dominates production.