Brown-spotted leafroller

Henricus fuscodorsana is a moth species belonging to the order Lepidoptera and the family Tortricidae. Known as a specific leafroller, this pest has adapted to target various fruit-bearing trees, often appearing in specific climatic zones where it can complete its full life cycle successfully.

The host range of this pest mainly includes plants from the Rosaceae family. The larvae (caterpillars) are the primary cause of damage, as they feed on foliage, buds, and occasionally young fruits, which significantly hampers the overall health and productivity of the host plant.

The biology of Henricus fuscodorsana follows a typical pattern for leafrollers: eggs are deposited on leaves, followed by larval stages, pupation, and the emergence of adults. The number of generations per year is heavily dependent on ambient temperatures, with warmer seasons facilitating more rapid population growth.

Damage is characterized by the rolling or folding of leaves, which are secured with silk to form protective feeding shelters. Within these structures, the larvae consume leaf tissues, causing skeletonization and premature senescence of the foliage. Heavy infestations can lead to significant yield losses and weakened tree structure.

Effective management strategies should focus on an integrated approach:

• monitoring adult populations using pheromone traps;
• timely application of targeted insecticides during the early larval stage;
• utilizing biological control agents such as Trichogramma egg parasitoids;
• sanitation practices including the removal of infested leaves and branches;
• maintaining orchard hygiene to eliminate overwintering sites for the pupae.