The Brick

The Brick (Agrochola circellaris) is a moth belonging to the Noctuidae family. It is a common insect found across temperate regions of Europe and Western Asia, typically inhabiting woodlands, hedgerows, and garden environments.

The larvae, known as caterpillars, are polyphagous feeders that affect a variety of deciduous trees. Preferred hosts include species of Populus (poplar), Salix (willow), Ulmus (elm), and Tilia (lime). In some instances, they may also be found on fruit trees.

The species follows a single-brood annual lifecycle. The winter is spent in the egg stage, attached to the bark or branches of host plants. Larvae emerge in the spring, coinciding with the swelling and bursting of buds, which serves as their primary food source during early development.

Damage occurs in early spring when the larvae feed on developing buds and young foliage. This feeding pattern can result in reduced leaf surface area, impacting tree growth and vigor. In outbreak scenarios, the cumulative damage can lead to significant aesthetic and physiological stress on mature trees.

• Monitoring adult moth flight activity in autumn using pheromone or light traps.
• Application of targeted insecticides during the early larval emergence stage in spring.
• Encouraging natural predators such as birds and parasitoid wasps within the ecosystem.
• Applying systemic treatments only if threshold levels of infestation are exceeded.
• Promoting healthy tree growth through proper pruning and site maintenance practices.