Fig. 1

Effect of two tested compounds, T34 and KPHI, on the development of cucumber downy mildew disease caused by P. cubensis under greenhouse conditions. (A) Disease symptoms of cucumber downy mildew at 8 days post-treatment. (B,C) The disease severity of downy mildew disease on cucumber plants after the treatment with T34 and KPHI in experiment I and experiment II respectively. (D,E) The area under disease progress curve (AUDPC) of downy mildew disease on cucumber plants after the treatment with T34 and KPHI in experiment I and experiment II respectively. Values show the means ± standard errors. Different letters denote statistical differences among treatments according to Tukey’s HSD test (p < 0.05).