Fabrella tsugae (Farlow) Kirschstein 1941

needle blight of hemlock

on Tsuga

Tsuga spec., België, prov. Antwerpen, Laakdal, Watereinde, 11.xii.2021 © Carina Van Steenwinkel: infected tree

detail

underside of a needle with apothecia

section through an apothecium

ascus

parasite

Asci with 4 spores, size 10-12 x 63-77 µm. Spores 2-cellig, fresh spores with 2 large oil drops, size 6-7 x 13-17 µm.

host plants

Pinaceae, monophagous

Tsuga.

notes

Originally a North American species.

references

Brandenburger (1985a: 27).