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Phloeosinus thujae

Cypress bark beetle

Description

This species is smaller than the Phloeosinus aubei and measures only 1.5 to 2 mm in size. It has a dark brown or black body, and males have relatively prominent serrated teeth on their elytra. Mating occurs from May to June. After mating, females usually create a uniramous gallery where they lay eggs on the sides. The larvae then hatch and create tunnels filled with sawdust. The emergence hole is circular with a diameter of approximately slightly over 1mm. Subsequently, the imagoes undergo a maturation feeding, which is also dangerous. A characteristic of the maturation feeding and gallery formation is the presence of fine sawdust found at the site of the gall. Around entrance holes, the tree may also exude resin. It has one generation per year

Symptom

Circular exit holes, gallery under bark, sawdust, drops of resin.

Tree Species: Juniper, Cypress, Thuja

Part of a plant- attacked: Tree trunk, Branch

Pest significance: Harmful

Pest Category: Insects

Invasive Species: No

Present in EU: Yes

Last observations

There are a total of 1 observations of the species in the system

Phloeosinus thujaeCypress bark beetle
Marek
Number of votes: 0
Published: 14.9.2024

Phloeosinus thujaeCypress bark beetle
Marek
Number of votes: 0
Published: 14.9.2024

Phloeosinus thujaeCypress bark beetle
Marek
Number of votes: 0
Published: 14.9.2024