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Anthracnose (Aureobasidium apocryptum) on Maple (Acer spp.)


11 Images
5405252
Paul Bachi
University of Kentucky Research and Education Center

Upper surface of maple leaf with tan blotches having dark-green halos caused by the fungus Aureobasidium apocryptum.

5405253
Paul Bachi
University of Kentucky Research and Education Center

Upper surface of maple leaf with tan blotches having dark-green halos caused by the fungus Aureobasidium apocryptum.

5405254
Paul Bachi
University of Kentucky Research and Education Center

Close-up of upper surface of maple leaf with tan blotches having dark-green halos caused by the fungus Aureobasidium apocryptum.

5405255
Paul Bachi
University of Kentucky Research and Education Center

Close-up of lower surface of maple leaf with tan blotches having dark-green halos caused by the fungus Aureobasidium apocryptum.

5405256
Paul Bachi
University of Kentucky Research and Education Center

Close-up of lower surface of maple leaf showing one tan blotchy area having a dark-green halo caused by the fungus Aureobasidium apocryptum.

5405257
Paul Bachi
University of Kentucky Research and Education Center

Close-up of lower surface of maple leaf showing tan infected tissue caused by the fungus Aureobasidium apocryptum.  Note the lack of any signs of the pathogen.

5405258
Paul Bachi
University of Kentucky Research and Education Center

Lower surface of maple leaf stained to reveal random acervuli of the fungus Aureobasidium apocryptum.

5405259
Paul Bachi
University of Kentucky Research and Education Center

Lower surface of maple leaf stained to reveal a cluster of acervuli of the fungus Aureobasidium apocryptum.

5405260
Paul Bachi
University of Kentucky Research and Education Center

An acervulus with stained conidia of the fungus Aureobasidium apocryptum.

5405261
Paul Bachi
University of Kentucky Research and Education Center

An acervulus with stained conidia of the fungus Aureobasidium apocryptum.

5405262
Paul Bachi
University of Kentucky Research and Education Center

Conidia of the fungus Aureobasidium apocryptum.