mega-pest

Devourer of worlds: two of the worst pests have hybridised into a global ‘mega-pest’

Devourer of worlds: two of the worst pests have hybridised into a global ‘mega-pest’

Ravenous caterpillar that eats hundreds of plant species, unstopped by pesticides, and that's never been to the Americas arrives in the Americas and hybridises with the locally adapted caterpillar. What more?