Figure 4

Mean total number ± SD of Cydia molesta males and females captured in each trap (N = 6) in peach and pear orchards from June to September 2019. (a) and (b), the peach orchard and the pear orchard during 5 June–18 June, respectively; (c) and (d), the peach orchard and the pear orchard during 8 July–21 July, respectively; (e) and (f), the peach orchard and the pear orchard during 6 August-19 August, respectively; (g) and (h), the peach orchard and the pear orchard during 5 September–19 September, respectively. Each trap was baited with a rubber septum with synthetic VOC mixtures corresponding to those emitted by pear and peach fruit, peach shoots, a hexane control (CK), and sex pheromone (SP). The ratios are shown in Table 3. The two varieties of pear species were Jimi (JM) of Pyrus bretschneideri, Huangjin (HJ) from Pyrus pyrifolia. The peach variety was Shuguang of Prunus persica. The experiment was conducted at an experimental orchard at the Institute of Forestry and Pomology (IFP), Beijing Academy of Agricultural and Forestry (BAAF), Beijing, China. Different letters (capital letters for males captured and small letters for females) on bars indicate significant differences (one-way ANOVA followed by Tukey's multiple comparison test, P < 0.05).