Wormwood shark

The wormwood shark (Cucullia absinthii) is a moth species belonging to the order Lepidoptera and the family Noctuidae. It is recognized as a specific pest primarily affecting plants of the genus Artemisia, which are widely grown for pharmaceutical purposes and essential oil production.

This pest exclusively targets various species of wormwood. The larvae are voracious feeders, causing direct damage to the foliage and flower buds, which significantly compromises the health and chemical composition of the crop, making it unfit for commercial processing.

The life cycle involves a complete metamorphosis. The adult moths emerge during the spring and summer, laying eggs on the leaves of the host plants. After hatching, the larvae undergo multiple instars, feeding throughout the vegetative stage before burrowing into the soil to pupate in a resilient cocoon.

The damage caused by the larvae is characterized by defoliation, which hampers the plant's ability to undergo photosynthesis and reduces overall biomass. In cases of high infestation levels, the pest can cause severe economic losses by destroying the most valuable parts of the wormwood plant.

Control measures are essential for sustainable cultivation. Effective strategies include:

• Deep autumn plowing to expose and destroy pupae in the soil.
• Mechanical collection of caterpillars in small gardens.
• Use of selective insecticides during the early larval stages when they are most vulnerable to chemical treatments.