A worm infestation in Folgueras de Cornás, a parish in the municipality of Tineo, Asturias, has forced several families to abandon their homes after nearly two weeks of relentless invasion by thousands of caterpillars.
Manuela Rodríguez, a local resident, endured days of foul odor before packing her bags and leaving her own house. She is not alone: multiple families have fled as the plague shows no sign of subsiding.
What Is the Worm Causing the Infestation?
The culprit is Mythimna unipuncta, known in English as the armyworm or true armyworm. It is a moth of the Noctuidae family, native to the Americas but now distributed across much of the globe.
The larval stage measures between three and four centimeters, with a greenish or brown body and light longitudinal stripes. These caterpillars are the ones wreaking havoc.
Why Are They Invading Homes?
Armyworms feed on grasses: corn, oats, barley, wheat, and lawn grass. They are particularly fond of ryegrass, the base forage for livestock in Asturias, a region heavily reliant on dairy farming.
When they exhaust the grass in one field, they march en masse to neighboring plots—hence the nickname "soldier worm." This mass movement can bring them into gardens and, eventually, into homes.
What Damage Do They Cause?
The larvae emerge at night to feed in groups, stripping leaves down to the midrib. In agricultural settings, this can devastate crops and pastures.
For homeowners, the invasion means unpleasant odors from dead worms, stained walls, and the psychological toll of sharing space with thousands of crawling insects.
How Are Residents Coping?
Some families have temporarily relocated, while others are trying to seal doors and windows. Local authorities have not yet announced a coordinated response. Context on how this played out before sits in Worm Infestation Forces Families to Flee Homes in Folgueras de Cornás.
The infestation has lasted almost two weeks without abating, leaving residents desperate for relief. The background to this story is set out in Fungus Discovery Offers Hope Against African Armyworm Pest. A related thread runs through Natural Cure for African Armyworm Offers Hope to Farmers.
What to Watch Next
Experts suggest monitoring the spread, as armyworms can quickly move to new areas. Biological controls and targeted pesticides may be necessary if the outbreak persists. Earlier coverage in Yemeni Families Flee Houthi Conflict Across Red Sea to Djibouti shows how the argument developed. A closer look at the same subject appears in Trending: latest articles.
For now, the people of Folgueras de Cornás await solutions while coping with an unwelcome invasion. Anyone following the wider picture can start with DIY Pest Control vs Professional Pest Control: When to Call Guide. The same theme surfaces in Mosquito Treatment in Virginia Beach: A Local Pest Professionals Guide, which takes a different angle.
Key Takeaways
- Mythimna unipuncta (armyworm) is the species behind the infestation.
- Larvae feed on grasses, especially ryegrass, and march in groups when food runs out.
- Several families in Folgueras de Cornás have left their homes due to the invasion.
- The plague has persisted for nearly two weeks without signs of stopping.
- Local authorities have yet to issue a formal response plan.
Comparison of Armyworm Characteristics
| Attribute | Details |
|---|---|
| Scientific name | Mythimna unipuncta |
| Common names | Armyworm, true armyworm, cereal armyworm |
| Larval length | 3–4 cm |
| Color | Greenish or brown with light stripes |
| Preferred food | Grasses (corn, oats, barley, wheat, ryegrass) |
| Behavior | Nocturnal feeding in groups; mass migration when food is scarce |
FAQ
What is an armyworm?
An armyworm is the larval stage of the moth Mythimna unipuncta. It is a pest that feeds on grasses and can cause significant agricultural damage.
Why are armyworms entering homes?
When armyworms deplete their food source in fields, they move in large numbers to find new food, which can lead them into gardens and houses.
Are armyworms dangerous to humans?
Armyworms are not directly harmful to humans, but they can cause allergic reactions and are a nuisance due to their sheer numbers and the odor of dead larvae.
How can I protect my home from armyworms?
Seal cracks and gaps around doors and windows, remove outdoor lights that attract moths, and consult local authorities for infestation control measures.