Poplar kitten

The Poplar kitten (Cerura erminea) is a moth species belonging to the family Notodontidae within the order Lepidoptera. This insect is recognized as a foliage feeder that can cause significant defoliation in specific broad-leaved tree species when population densities are high.

The primary host plants for this pest include trees from the Salicaceae family, specifically poplars (Populus) and willows (Salix). The pest is particularly problematic in nurseries, forest shelterbelts, and urban park landscapes where the maintenance of foliage health is essential for tree vigor and aesthetic value.

The biological cycle of Cerura erminea consists of four distinct stages: egg, larva, pupa, and adult. The moths are nocturnal, and females typically oviposit on the leaves of host trees. The larvae are well-known for their defensive behavior, where they raise the front and back ends of their bodies when threatened, exposing distinct "tails" to deter predators.

The damage caused by this pest is primarily related to the feeding habits of the larvae. Younger larvae create small holes in the leaf blades, while older larvae are capable of consuming large portions of the leaf, leaving only the primary veins. Extensive defoliation reduces the photosynthetic capacity of the tree, potentially hindering growth and weakening the plant's structural integrity.

Management strategies focus on integrated pest management (IPM) practices. Regular monitoring during the spring and early summer allows for the early detection of larvae clusters. Chemical control using selective insecticides is recommended only when the economic threshold is exceeded.

• Manual removal of larvae in small-scale plantings.
• Promoting natural predators like parasitic wasps and birds.
• Applying bio-insecticides to minimize impact on beneficial species.