Larch sawfly

Larch sawfly is a small insect whose larvae feed on larch trees, often causing defoliation. During summer, the larvae, which resemble caterpillars, strip the needles from the trees, leading to weakened or stressed trees. This can result in reduced growth and, in severe cases, tree mortality. The sawfly has a short lifecycle, with adults laying eggs on larch foliage. Management typically involves monitoring infestations and, if necessary, applying biological or chemical controls to protect affected trees. While they are a natural part of forest ecosystems, heavy infestations can pose challenges to larch health and forestry practices.