The control of fungal seed–borne diseases by means of a thiram seed soak

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Abstract
SUMMARY: A method of soaking seeds in an 0·2% aqueous suspension of thiram for 24 h at 30 °C, which had previously been shown to eradicate infection by several fungi, was tested against a further thirteen seed‐borne pathogens. Eleven of these were completely controlled, one was almost completely controlled and one was not adequately controlled by the treatment.The thiram soak treatment was much more effective than dust treatments with fungicides for the control of many internal fungal pathogens. It was also generally more effective and less damaging than hot‐water treatment.The ways of applying the method commercially have been investigated and it is being adopted for the treatment of celery, brassicas and red beet.