The pea leafminer (Liriomyza huidobrensis) is a pest of plants including peas, beans, potatoes, and spinach, and has spread from South America to Central America, Europe, Africa, and Asia. A new study on the species examines how temperature, host-plant range, and competition affect the pea leafminer’s range and how those factors can aid in predicting its invasive risk in other areas. (Photo credit: Merle Shepard, Gerald R.Carner, and P.A.C Ooi, Insects and their Natural Enemies Associated with Vegetables and Soybean in Southeast Asia, Bugwood.org)