Clover seed moth

Systematic position: The Clover seed moth (Enarmonia interstinctana) belongs to the order Lepidoptera and the family Tortricidae. It is a well-known pest that specifically targets legume crops, particularly those grown for seed production.

Crops damaged: This insect primarily infests clover crops, with a strong preference for red clover (Trifolium pratense). In commercial agricultural settings, it is a limiting factor for the production of high-quality clover seeds.

Biology and life cycle: Depending on the geographic region, the Clover seed moth can produce one to three generations annually. They overwinter as larvae inside silken cocoons located within debris or near the soil surface. The spring flight of adults coincides with the budding stage of the clover, providing an ideal environment for oviposition on plant structures.

Nature of damage and harm: The damage is inflicted by the larvae. Once they hatch, they bore directly into the clover flower heads, feeding on the developing ovules and seeds. Infested heads often appear discolored and withered, leading to significant yield losses, often rendering the crop unsuitable for harvest.

Control measures: Successful management involves a combination of cultural practices and targeted chemical interventions:

• Harvesting the crop early, before larvae complete their development within the heads.
• Practicing crop rotation to break the pest's reproductive cycle.
• Deep plowing in the autumn to bury and destroy overwintering sites.
• Applying insecticides timed to match the adult emergence and egg-laying period based on economic thresholds.