Willow weevil

The willow weevil (Curculio salicivorus) belongs to the Curculionidae family within the order Coleoptera. This species is an specialized herbivore, primarily associated with willow trees (Salix), where it completes its life cycle and feeds on various plant tissues throughout its development.

This pest mainly affects various species of the Salix genus. It is particularly problematic in areas with willow monocultures, parks, and decorative gardens, where significant infestations can lead to reduced tree vigor, foliage loss, and general decline in the aesthetic quality of the trees.

The biological life cycle of the insect is strictly tied to the seasonal growth of willow. Following hibernation, the adults emerge in spring to feed. Females deposit eggs inside developing buds or young shoots. The larvae develop inside the plant tissue, which provides them with both nutrition and protection from external environmental factors.

The damage caused by Curculio salicivorus includes destruction of buds, stunted growth of shoots, and unsightly holes in leaves caused by adult feeding. Larval feeding galleries often disrupt the plant's vascular tissue, potentially causing twig dieback and stunted development of the affected branches.

Effective management requires an integrated approach. Cultural practices such as pruning and destroying infested shoots are essential to reduce the pest population density. During peak activity periods, application of selective insecticides can prevent severe damage and preserve the health of the willow trees.

• Regular monitoring of tree health during the spring season.
• Removal and proper disposal of infested plant material.
• Targeted application of insecticides to manage adult weevil populations.