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Melampsorella caryophyllacearum

Fir broom rust

Description

Fir broom rust infects the cambium of fir trees through the bark of young branches and causes cankerous tumors in the shape of nodes and even galls. This neoplasm develops for a few years. If buds are infected by the mycelium, witches’ broom starts to develop. The witches’ broom needles, which are yellowish and shorter, are a host for aecia. In autumn the needles fall. Harmful effects occur mostly after infection of the trunk because the swellings considerably impair wood quality. From the pathological point of view, they are a gateway for wood-damaging fungi. Herbs of the family Caryophyllaceae like Cerastium spp., Stellaria spp., Arenaria spp. and Malachium spp. are an alternate host for the rust.

Symptom

Cankerous tumors in the shape of nodes and even galls.

Tree Species: Fir

Part of a plant- attacked: Tree trunk, Branch

Pest significance: Very harmful

Pest Category: Fungi

Invasive Species: No

Present in EU: Yes

Last observations

There are a total of 8 observations of the species in the system

Melampsorella caryophyllacearumFir broom rust
Green Workers
Number of votes: 0
Published: 17.11.2025

Melampsorella caryophyllacearumFir broom rust
milan
Number of votes: 0
Published: 10.9.2025

Melampsorella caryophyllacearumFir broom rust
milan
Number of votes: 0
Published: 10.9.2025

Melampsorella caryophyllacearumFir broom rust
Slavomír Nábočík
Number of votes: 0
Published: 13.12.2024

Melampsorella caryophyllacearumFir broom rust
Andrej
Number of votes: 0
Published: 11.6.2024