Abstract

Anthracnose of Dolichos lab-lab var. typicus is caused by the fungus Colletotrichum lindemuthianum (Save & Magn.) Briosi and Cavara (Glomerella lindemuthianum (Sace & Magn.) Shear. The diseasó is found to be both externally and internally seed borne. Seed borne infection of Dolichos lab-lab by Colletotrichum lindemuthianum is reported for the first time in the prosent investigations. Among the various seed treatments tried for the control of the disease, Dow 9-B has recorded significantly greater germination than control. Among the systemic chemicals, treating the seeds with zine chloride solution has recorded highest germi nation. In respect of the others, one hour soaking appears to be the optimum. Soaking the seods in water at a temperature of 60° C for 10 to 30 minutes appears to be the optimum without impairing seed viability.

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