A study has been made of the fungistatic and fungicidal action of various antibiotic substances upon Ceratostomella ulmi, the causative agent of the Dutch elm disease. Actinomycin and clavacin had a strong effect upon this fungus, penicillin and streptothricin had no effect at all, and other substances fell between.
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Waksman et al. (1943) studied this question.