Abstract：In order to screen effective fungicides against Chrysanthemum white rust （ CWR）, the control efficacy of 4 fungicides [ 62.5% azoxycarboxylate quinone nitrile Water Dispersible Granules （WDG）, 50% carbenoxylate Water Power （WP）, 39% fine armor · azoxystrobinate WDG and 10% penconazole Emulsion in Water （EW） ] against CWR was compared by pot experiments trail, and the effect of 11 fungicides on rooting rate and survival rates of infected cuttings were tested by immersion method. The results showed that the cumulative control effect of the 10% penconazole EW 3000 - fold was 82.46% at 28 days after the treatment. By day 57 after the treatment, the effect of 39% aerosol azoxystrobin SC 2000 -fold and the 10% penconazole EW 1000 -fold showed the best effect, and with accumulation control efficacy over 90%. The rooting rate and survival rate of infected cuttings were not improved by treated infected cuttings with 11 chemical compounds. Therefore, 10% penconazole EW could be used to control CWR.
2017, Vol. 30 
