ALCM, invading from the north

An emerging orchard pest in northern climates in the apple leafcurling midge (ALCM), an invasive insect from Europe. It was first detected in North America in the 1980s, primarily in eastern Ontario, but it has spread since then to both the Finger Lakes region in New York and Michigan. Kristy Grigg-McGuffin, horticulture IPM specialist with the