Old World bollworm (Helicoverpa armigera)
Prior to 2013, the Old World bollworm (Helicoverpa armigera, larva shown here) had only existed in the Old World. Now, H. armigera is found in most countries in Latin America and is expected to migrate north (aided by wind currents) and establish populations in the continental U.S. Although H. armigera attacks multiple crops, soybean is one of the most preferred and impacted by this pest in Brazil. If this pest establishes in the U.S., soybean will also be at risk from H. armigera, particularly in mid-southern U.S. states such as Mississippi, Louisiana, Georgia, Tennessee, Arkansas, Virginia, and North Carolina. (Photo by Gyorgy Csoka, Hungary Forest Research Institute, Bugwood.org)