. Dutch elm disease in Illinois. Fungicides; Scolytus multistriatus; Hylurgopinus rufipes; Dutch elm disease. DUTCH ELM DISEASE IN ILLINOIS 7 fungus is not obtained by a culture test even though the tree is af- fected by the disease. Dutch elm disease is caused by the fungus Ceratocystis ulmi (Buisman) C. Moreau. In Hving trees this fungus grows in the sap- wood, most frequently that of the current season, and causes the Fig. 2.—Some affected elms, such as this one, show foliage wilt on most or all of their branches at one time and die rapidly. H^/. Please note that these images are extracted
. Dutch elm disease in Illinois. Fungicides; Scolytus multistriatus; Hylurgopinus rufipes; Dutch elm disease. DUTCH ELM DISEASE IN ILLINOIS 7 fungus is not obtained by a culture test even though the tree is af- fected by the disease. Dutch elm disease is caused by the fungus Ceratocystis ulmi (Buisman) C. Moreau. In Hving trees this fungus grows in the sap- wood, most frequently that of the current season, and causes the Fig. 2.—Some affected elms, such as this one, show foliage wilt on most or all of their branches at one time and die rapidly. H^/. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Carter, J. Cedric (James Cedric), 1905-; Illinois. Natural History Survey Division. [Urbana]
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