Cacoecia leafrollers

The genus Cacoecia belongs to the Tortricidae family within the order Lepidoptera. These moths are recognized as significant agricultural pests, particularly known for their ability to damage foliage and developing fruit across a wide range of woody ornamental and fruit-bearing tree species.

The primary host plants include pome fruits such as apples and pears, as well as stone fruits. Larvae are voracious feeders that consume buds, emerging leaves, and flowers. During severe infestations, they may feed directly on the surface of young fruits, leading to scarring and significant economic loss.

The life cycle of Cacoecia is characterized by complete metamorphosis. Overwintering typically occurs at the larval stage within silken cocoons tucked inside bark crevices. As temperatures rise in spring, larvae become active, migrate to the foliage, and initiate feeding, which is followed by pupation on the host plant.

Damage is highly visible through the characteristic rolling or tying of leaves with silk threads. This behavioral trait protects the larvae from natural predators and environmental stressors, making them challenging to target once they are established within the rolled leaf structure.

• Regular monitoring of adult moth flight using pheromone traps.
• Pruning and destroying infested plant shoots during the dormant season.
• Applying biological control agents during the early larval development stage.
• Timely use of selective insecticides targeting larvae while preserving beneficial insect populations.