Selecting of Useful Chemicals Reducing of Leaf Blight on Job s Tears (Coix lachry-ma-jobi L. Var.)

This study was conducted evaluate the control effect of fungicides on control of Leaf blight, growth characteristics, and dry yield in the cultivation of Job s tears. All fungicides treated had no effect on the growth of Job s tears. The major fungicides were mancozeb Wp, 75%, chlorothalonil Wp, 75%, dithianon Wp, 43%, difenoconazole Wp, 10%, benomyl Wp, 50%, and propineb Wp, 70%. Dry seed yield were increased largely with chlorothalonil Wp, 75%(33g/20ℓ), fungicide than the other fungicides and control. All fungicides had no injury with standard dosage. On the other hand all fungicides had slight injury in the double dosage level for the Job s tears.