Armyworms Are A Threat To All Of The World's Crops When it comes to invasive insects we usually hear about the United States falling victim to devastating insect pests that are native to more exotic regions of the world. However, some insect pests that are native to North America have found their way onto other continents only to cause serious damage to various crops. For example, the crop-eating insect pests known as fall armyworms have been causing damage to corn crops in Africa for several years now. These fall armyworms are native to the Americas. A British non-profit group named the Centre for Agriculture and Bioscience International (CABI) has claimed that these fall armyworms are causing more and more damage to Africa's crops