Summer fruit tortrix moth

Systematic position. The Summer fruit tortrix moth (Adoxophyes orana) belongs to the order Lepidoptera and the family Tortricidae. It is a highly polyphagous pest of economic importance, frequently found in pome and stone fruit orchards across Europe and Asia.

Host plants and damage. The pest attacks a wide range of fruit trees including apple, pear, plum, and cherry. Larvae are the primary cause of damage; they tie leaves together with silk and feed on them. Furthermore, they feed on the surface of young fruits, causing scarring and necrosis, which significantly lowers the commercial value of the harvest.

Biology and life cycle. This species usually overwinters as third-instar larvae in hibernacula located in bark crevices or branch forks. In the spring, they emerge to feed on buds and blossoms. The moth typically produces two to three generations annually, depending on temperature conditions, which requires careful timing of intervention during the growing season.

Pest significance. The damage caused by the Summer fruit tortrix is twofold: direct loss of foliage and quality degradation of fruit. Larval feeding on fruits creates entry points for fungal pathogens, such as Botrytis or Monilia, leading to fruit rot. This makes control essential for maintaining yield quality and storage life.

Control measures. Successful management involves a combination of strategies:

• Monitoring with pheromone traps to identify population peaks.
• Application of selective insecticides during the egg-hatch stage.
• Use of biological control agents and mating disruption technology.
• Cultural practices, including tree pruning and orchard hygiene to reduce wintering sites.