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Dutch Elm Disease (Ophiostoma ulmi) on Elm (Ulmus sp.)


8 Images
5368710
Paul Bachi
University of Kentucky Research and Education Center

Tree limbs and leaves shown symptoms of dieback.

5368709
Paul Bachi
University of Kentucky Research and Education Center

Incubation of symptomatic pieces of elm branches, surface sterilized and placed in an incubation chamber.

5368707
Paul Bachi
University of Kentucky Research and Education Center

Characteristic asexual stage or "synnemata", conidiophores with clusters of colorless conidia at the top.

5368708
Paul Bachi
University of Kentucky Research and Education Center

Characteristic asexual stage or "synnemata", conidiophores with clusters of colorless conidia at the top.

5368586
Paul Bachi
University of Kentucky Research and Education Center

Characteristic asexual stage or "synnemata", conidiophores protruding from the end of an infected branch.

5368587
Paul Bachi
University of Kentucky Research and Education Center

Characteristic asexual stage or "synnemata", conidiophores protruding from the end of an infected branch.

5368588
Paul Bachi
University of Kentucky Research and Education Center

Characteristic asexual stage or "synnemata", conidiophores protruding from the end of an infected branch.

5368589
Paul Bachi
University of Kentucky Research and Education Center

Characteristic asexual stage or "synnemata", conidiophores protruding from the end of an infected branch.