USDA Forest Service Archive's Images
Organization: USDA Forest ServiceCountry: United States
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Rhytismatales(X)
| 8 Images of 7 Subjects | View Subject List | View Image Details | View Thumbnails |
| Image | Subject Name | Scientific Name | Description |
|---|---|---|---|
| 1241575 | fir needle cast | Isthmiella abietis | Fruiting bodies (hysterothecia) of Isthmiella abietis (needle cast) on midrib of subalpine fir needles. |
| 1241614 | lodgepole pine needle cast | Lophodermella concolor | Fruiting bodies, produced during bud break, are the same color as the dead needles, giving the needles a warty appearance. |
| 1241586 | larch needle cast | Hypodermella laricis | Larch needle blight causes needles to droop on branches turning red the first year. |
| 1241587 | larch needle cast | Hypodermella laricis | Black dots of fruiting bodies form in midsummer on needles. |
| 1241506 | Elytroderma needle cast of pine | Elytroderma deformans | Witches brooms form in systemically infected branches. |
| 1241576 | fir needle cast | Lirula abietis-concoloris | Lirula abietis (needle cast) fruiting bodies (hysterothecia) on midrib of undersides of grand fir needles. |
| 1241607 | pine needle cast | Lophodermium nitens | Needle casts and blights are most evident in lower crowns of trees. In severe infections such as this all except the current season's foliage are gone or dead. This is lophodermium nitens on western white pine. |
| 0364020 | Lophodermium needle casts | Lophodermium spp. | close-up view |
