Pest · Lepidoptera (butterflies)

PHASSUS PHARUS

Phassus pharus

Description

Phassus pharus is a moth species belonging to the family Hepialidae (ghost moths) within the order Lepidoptera. This insect is recognized in agronomy as a stem-boring pest that can significantly affect the health and physiological development of its host plants.

This pest typically attacks a variety of woody plants and certain agricultural crops. The larvae seek out succulent stems or trunks where they can safely feed and develop, making the plants susceptible to structural damage and pathogen infiltration.

The life cycle of Phassus pharus involves the female laying eggs near host plant tissue. Once hatched, the larvae penetrate the plant's surface and create tunnels within the inner tissues. This internal feeding behavior is the primary stage of the life cycle that causes economic damage to the plant.

The damage caused by the larvae is characterized by internal tunneling that disrupts the plant's vascular system. This leads to weakened stems, reduced nutrient transport, and increased vulnerability to environmental stress or secondary infections, often resulting in stunted growth or plant death.

Effective management strategies rely on integrated pest management (IPM) practices. Key methods include monitoring for entry holes, the manual removal and destruction of infested stems, and the strategic application of insecticides targeting adult moths or young larvae before they fully penetrate the plant tissue.

Biology

Taxonomy

Latin name
Phassus pharus
Order
Lepidoptera (butterflies)
Family
Hepialidae

Taxonomy and Latin: EPPO Global Database · code PHAUPH

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