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Caption: Madrone canker
Photo by: R.S. Byther
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Caption: Honey locust Nectria canker
Photo by: R.S. Byther
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Caption: Nectria canker fruiting bodies
Photo by: R.S. Byther
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Caption: Tubercularia canker fruiting bodies
Photo by: R.S. Byther
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Caption: Willow canker
Photo by: R.S. Byther
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Caption: Honey locust Nectria canker
Photo by: R.S. Byther
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Caption: Birch Botryosphaeria canker
Photo by: R.S. Byther
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Caption: European canker on apple
Photo by: R.S. byther
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