| 1241526 |
Diplodia blight |
Sphaeropsis sapinea |
|
| 1241612 |
lodgepole pine needle cast |
Lophodermella concolor |
Lophodermella concolor turns needles bright red-brown just before bud break in the spring. |
| 1241613 |
lodgepole pine needle cast |
Lophodermella concolor |
Lophodermella concolor turns needles bright red-brown just before bud break in the spring. |
| 1241617 |
pine needle cast |
Lophodermium nitens |
The wilted needles are red-brown with dark mottling at first, then gray. |
| 1241610 |
Dothistroma needle blight |
Mycosphaerella pini |
A light infection. |
| 1241577 |
fir needle cast |
Isthmiella quadrispora |
Yellow discolored needles of subalpine fir with Isthmiella quadrispora (needle cast) infection and secondary infection by Lophomerum autumnale (Darker) magasi. |
| 1241578 |
common snow mold |
Phacidium infestans |
Snow blight kills needles under snow. Small black dots of fruiting bodies are in two lines on either side of the midrib on the underside of needles. |
| 1241568 |
Swiss needle cast |
Phaeocryptopus gaeumannii |
Pseudothecia on underside of needles ranging from lightly infected (left) to heavily infected (right). |
| 1241569 |
Swiss needle cast |
Phaeocryptopus gaeumannii |
Close-up of pseudothecia on underside of needle. |
| 1241570 |
Swiss needle cast |
Phaeocryptopus gaeumannii |
Micrograph of needle cross section with pseudothecia emerging from stomata on underside. |
| 1241508 |
Diplodia blight |
Sphaeropsis sapinea |
Severely infected tree. |
| 1241509 |
Diplodia blight |
Sphaeropsis sapinea |
Close-up of infected twig. |
