| 5430484 |
Dutch elm disease |
Ophiostoma ulmi |
Pesotum ulmi stage of Ophiostoma ulmi present in an incubated elm branch wood chip. |
| 5469114 |
Dutch elm disease |
Ophiostoma ulmi |
|
| 5469115 |
Dutch elm disease |
Ophiostoma ulmi |
|
| 5458864 |
Dutch elm disease |
Ophiostoma ulmi |
Conidial head of synnema showing conidial production |
| 5458862 |
Dutch elm disease |
Ophiostoma ulmi |
Conidial heads of synnemata |
| 5458863 |
Dutch elm disease |
Ophiostoma ulmi |
Conidial head of synnema showing conidial production |
| 5458860 |
Dutch elm disease |
Ophiostoma ulmi |
Synnemata of Graphium stage |
| 5458861 |
Dutch elm disease |
Ophiostoma ulmi |
Synnemata of Graphium stage |
| 5458859 |
Dutch elm disease |
Ophiostoma ulmi |
Synnemata of Graphium stage emerge from cut stem incubated in moist chamber |
| 5458857 |
Dutch elm disease |
Ophiostoma ulmi |
Synnemata of Graphium stage emerging from cut stem incubated in moist chamber |
| 5458858 |
Dutch elm disease |
Ophiostoma ulmi |
Synnemata of Graphium stage emerge from cut stem incubated in moist chamber |
| 5458855 |
Dutch elm disease |
Ophiostoma ulmi |
Dark rings symptomatic of infection |
| 5458856 |
Dutch elm disease |
Ophiostoma ulmi |
Dark ring symptomatic of infection |
| 5458678 |
Dutch elm disease (novi-ulmi) |
Ophiostoma novo-ulmi |
Synnemata |
| 5457963 |
Dutch elm disease (novi-ulmi) |
Ophiostoma novo-ulmi |
Synemmata developing within a wound on an elm branch. |
| 0454017 |
Dutch elm disease |
Ophiostoma ulmi |
Cross section of an Ophiostoma ulmi-infected elm branch, showing characteristic dark spots in the wood. |
| 5408097 |
Dutch elm disease |
Ophiostoma ulmi |
|
| 5408098 |
Dutch elm disease |
Ophiostoma ulmi |
|
| 5252020 |
Dutch elm disease (novi-ulmi) |
Ophiostoma novo-ulmi |
Fruiting bodies of Ophiostoma novo-ulmi in bark beetle galleries of Scolytus multistriatus on American elm. |
| 5368586 |
Dutch elm disease |
Ophiostoma ulmi |
Characteristic asexual stage or "synnemata", conidiophores protruding from the end of an infected branch. |
| 5368587 |
Dutch elm disease |
Ophiostoma ulmi |
Characteristic asexual stage or "synnemata", conidiophores protruding from the end of an infected branch. |
| 5368588 |
Dutch elm disease |
Ophiostoma ulmi |
Characteristic asexual stage or "synnemata", conidiophores protruding from the end of an infected branch. |
| 5368589 |
Dutch elm disease |
Ophiostoma ulmi |
Characteristic asexual stage or "synnemata", conidiophores protruding from the end of an infected branch. |
| 5368707 |
Dutch elm disease |
Ophiostoma ulmi |
Characteristic asexual stage or "synnemata", conidiophores with clusters of colorless conidia at the top. |
| 5368708 |
Dutch elm disease |
Ophiostoma ulmi |
Characteristic asexual stage or "synnemata", conidiophores with clusters of colorless conidia at the top. |
| 5368709 |
Dutch elm disease |
Ophiostoma ulmi |
Incubation of symptomatic pieces of elm branches, surface sterilized and placed in an incubation chamber. |
| 5368710 |
Dutch elm disease |
Ophiostoma ulmi |
Tree limbs and leaves shown symptoms of dieback. |
| 5359732 |
Dutch elm disease |
Ophiostoma ulmi |
Dutch elm disease fungus (described here as Ceratocystis ulmi) growing in a petri dish in the laboratory. |
| 5359733 |
Dutch elm disease |
Ophiostoma ulmi |
Dutch elm disease fungus (described here as Ceratocystis ulmi) growing in a petri dish in the laboratory. |
| 5366741 |
Dutch elm disease |
Ophiostoma ulmi |
Discoloration of elm wood due to the presence of Dutch elm disease (Ophiostoma ulmi). |
| 5366740 |
Dutch elm disease |
Ophiostoma ulmi |
Very close-up view of the coremia (asexual fruiting structures) of Dutch elm disease (Ophiostoma ulmi). |
| 5359735 |
Dutch elm disease |
Ophiostoma ulmi |
Portion of elm wood afflicted with Dutch elm disease showing galleries created by the European elm bark beetle, which vectors the disease. |
| 5359734 |
Dutch elm disease |
Ophiostoma ulmi |
Portion of an elm tree suffering from Dutch Elm Disease, with bark beetle galleries underneath the bark. |
| 1501032 |
Dutch elm disease |
Ophiostoma ulmi |
Dutch elm disease, vascular streak |