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Pityophthorus pityographus

Fir bark beetle Pityophthorus pityographus

Description

The adult is narrowly cylindrical, brownish-black, shiny, about 1.1-1.7 mm long. It swarms in spring, in April and May. About 3-8 females (usually 5-7) follow the male into the nuptial chamber and excavate star-shaped egg chambers after fertilization. The egg chambers are usually relatively long, not rarely 12-15 cm in length. Galleries are deeply cut into sapwood. The larval tunnels are quite dense and regular. It has two generations per year, in mountains usually only one. Damaged trees change the colour of their needles, especially on the most colonized branches which gradually die. In case of intensive attack, the bark falls off.

Symptom

Galleries are deeply cut into sapwood. The larval tunnels are quite dense and regular. Nuptian chamber is good visible in the wood.

Tree Species: Pine, Fir, Spruce, Larch

Part of a plant- attacked: Tree trunk, Branch

Pest Category: Insects

Invasive Species: No

Present in EU: Yes

Last observations

There are a total of 3 observations of the species in the system

Pityophthorus pityographusFir bark beetle Pityophthorus pityographus
Peter popadic
Number of votes: 0
Published: 10.5.2023

Pityophthorus pityographusFir bark beetle Pityophthorus pityographus
Patrícia
Number of votes: 0
Published: 22.1.2023

Pityophthorus pityographusFir bark beetle Pityophthorus pityographus
Samuel Debnár
Number of votes: 0
Published: 6.1.2023

Pityophthorus pityographusFir bark beetle Pityophthorus pityographus
Samuel Debnár
Number of votes: 0
Published: 6.1.2023