Abstract
Abstract The mixture of fluxapyroxad plus pyraclostrobin or the 9 time-spray schedule with variousfungicides was evaluated for their efficacy in controlling pear scab in field trials. It showed sufficientcondition to evaluate the efficacy of fungicides for the control of pear scab since disease incidence of theuntreated control plot was 58.4% or 100% on leaves or fruits, respectively. Pear scab on leaves was occurredby 6.3% at treated plot with the mixture of fluxapyroxad plus pyraclostrobin, resulting in the 89.2% ofcontrol value. Incidence of the fruit disease was 16.7% at treated plot with the mixture of fluxapyroxad pluspyraclostrobin, showing 83.3% of control value. When the 9 time-spray schedule was tested, pear scab wasoccurred by 5% or 13.3% on leaves or fruits, respectively. Their control values were the 91.4% on leaves or86.7% on fruits. Although the 9 time-spray schedule showed slightly lower disease incidence than the mixtureof fluxapyroxad plus pyraclostrobin, but there is no statistically significant difference. These results suggestthat the mixture of fluxapyroxad plus pyraclostrobin can control effectively the pear scab.Key words Mixture of fluxapyroxad plus pyraclostrobin, Pear scab, Venturia nashicola
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