Poplar clearwing moth

Systematic position. The Poplar clearwing moth (Aegeria tibialis) is a member of the order Lepidoptera and the family Sesiidae. These moths are characterized by transparent wings and a body shape that mimics wasps, a classic example of Batesian mimicry in the insect world.

Host plants. The primary hosts for this moth species are various members of the genus Populus, specifically poplar trees. They are also known to occasionally infest willow trees (Salix), particularly in nurseries or stressed riparian plantations.

Biology and life cycle. The life cycle of Aegeria tibialis typically takes one to two years to complete. Larvae are wood-borers that spend most of their life cycle beneath the bark, feeding on the cambium layer. Adult moths emerge in late spring or summer to mate and lay eggs.

Damage and economic impact. Larval feeding creates galleries beneath the bark, which disrupt the vascular system of the tree. This damage can lead to crown dieback, reduced vigor, and increased susceptibility to secondary wood-decaying fungi and other environmental stresses.

• Implementation of early detection programs using pheromone traps.
• Proper pruning of infested branches to reduce local pest populations.
• Maintaining tree health to prevent initial colonization by larvae.
• Application of targeted insecticides during the adult flight period.
• Biological control through the conservation of natural predators and parasitoids.