Lophodermella conjuncta–needle cast of pines - Lophodermella conjuncta
Symptoms / species
Impact / measures
|Discoloration of needles mostly confined to the abaxial half of the needle, the other half remaining green for a while; in mountain pines usually affecting rather older needles and commonly only one needle of each pair, the other remaining healthy; discolored needle parts with indistinct darker (slightly reddish) sectors, bands or spots with some resin flow, later on turning pale and yellow (at first sector-wise, then entirely) and finally greyish-white; in the pale sectors in groups fine, short, narrow and blackish slits (fruiting bodies: hand lens!); possibilities of errors: Swedish needle cast, with longer, more prominent and darker fruiting bodies.
|Affected tree species||Pine; |
|Affected parts||Needle; |
|Usually on mountain pines (Pinus mugo>/em>), on urban sites as well as in forests, more recently in medium altitudes of the Alps (Lower Austria, Tyrol) increasing in conspicuousness, but up to now rather low impact.
|Lophodermella conjuncta: Mountain pine showing needle cast|
|Lophodermella conjuncta: needle cast|
|Lophodermella conjuncta: needles with typical discoloration of the abaxial part|
|Lophodermella conjuncta: yellow-grey sector with fruiting bodies|
|Lophodermella conjuncta: fruiting body in cross section|
|Lophodermella conjuncta: ascus with spores|
Altenberg an der Rax
| Altenberg an der Rax|