According to scientists, the South American cactus moth primarily attacks Opuntia species, commonly known as prickly pear cactus. It can also occasionally affect Nopalea, Cylindropuntia and Consolea species. A pest once deliberately moved around the world to solve an agricultural problem has become a problem of its own. According to a report by the USDA’s…

A forest can return without being planted, but the pace and character of that recovery can depend heavily on what happens at the beginning. In southern Costa Rica, researchers have been following three different restoration approaches for about two decades, allowing them to compare how much woody biomass accumulated under each one. Some plots were…