Abstract
The control effect of acidic electrolyzed water (AEW) on gray mold of strawberry and anthracnose of cucumber was eveluated in field conditions. The AEW contained 40 ppm of free-chorine with pH 2.7, ORP 1100 mV. The germination of fungal spores such as for Pyricularia grisea, Botrytis cinerea, Colletotrichum orbiculare, Fusarium oxysporum f. sp. lycopersici, and Pythium aphanidermatum were significantly prevented by the one minute AEW treatment. The dilution of AEW with DW at a ratio of 1:2.5 preserved inhibition of spores of B. cinerea and C. orbiculare. The efficacy of AEW as a foliar spray to suppress anthracnose of cucumber by C. orbiculare and gray mold of strawberry by B. cinerea was determined in field conditions. A total of 4 applications of AEW with 7 and 8 days intervals inhibited gray mold of strawberry. The disease incidence increased 11 days after the final application of AEW to the same level as the control treatment. Anthracnose of cucumber by C. orbiculare was also inhibited by 3 AEW application at 7 days intervals. No physiological damage from the AEW application appeared on cucumber plants or strawberry in this study.
