CEPHALOSPORIUM WILT OF ELMS 23 



10. The fact that the findings of the writers agree with previous results 

 obtained in New England and do not agree with those obtained in Nebraska, 

 suggests the possibility that more than one strain, variet\-, or species of Ceph- 

 alosporium may be concerned. 



11. Based on the assumption that the fungus is native in the United States, 

 control measures for the disease it causes should be directed toward maintaining 

 the vigor of affected elms. Particular attention to the careful pruning out and 

 burning of diseased parts of trees is desirable. Treatment of fresh wounds or 

 scars should be directed toward avoidance of revival of latent infections. 



LITERATURE CITED 



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3. Banfield, W. M. The distribution of spores of wilt-inducing fungi through- 



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4. Beattie, R. K. The Dutch elm disease in Europe. Phytopath. 27:122. 1937. 



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