## 3 Results
### Field Trials  
The adhesive traps with the corresponding microencapsulated baits were deployed on 31 August 2022, at the Maquehue Experimental Field, and 14 monitoring visits were conducted throughout the season to track the SWD population. Subsequently, the first record of SWD capture was in the week of 8 September, in traps located in the three varieties of cherry. SWD capture in the Stella variety is shown in Figure 5A. It can be seen that there was generally a higher capture in the traps containing the WVM bait compared to the control. In the weeks of 8 September, 6 October, and 20 October, this difference was significant (100% vs. 0%, \(p\) = 0.014; 93% vs. 7%, \(p\) = 0.0007; and 100% vs. 0%, \(p\) = 0.014, respectively). In the Regina variety, there was a greater number of weeks with significant captures of SWD. In total, there were six weeks where the WVM bait captured significantly more flies than the control: 8 September, 15 September, 6 October, 20 October, 17 November, and 15 December (89% vs. 11%, \(p\) = 0.019; 86% vs. 14%, \(p\) = 0.05; 100% vs. 0%, \(p\) = 0.008; 100% vs. 0%, \(p\) = 0.0005; 100% vs. 0%, \(p\) = 0.004; and 100% vs. 0%, \(p\) = 0.045, respectively) (Figure 5B). In the case of the Lapins variety, significant differences were obtained in four weeks regarding the capture of SWD, in which there was again a higher percentage in the WVM bait traps compared to the control. The weeks with this significance were 8 September, 6 October, 13 October, and 20 October (71% vs. 29%, \(p\) = 0.023; 100% vs. 0%,  
Figure 3: The release rate of the WVM bait in a controlled environment chamber is at the average temperature and humidity for the area (21.2 \({}^{\circ}\)C and 75% RH). Mathematical modeling was employed using Korsmeyer–Peppas with the logarithm of time (Log (h)) (**A**) and Higuchi through the square root of time (\(\surd\) (h)) (**B**). \(p\) = 0.045; 96% vs. 4%, \(p\) = 0.000004; 100% vs. 0%, \(p\) = 0.001, respectively) (Figure 5C). Interestingly, when analyzing the weeks with significant captures, most are concentrated in October, after the first bait change (30 September). Figure 4: Volatile compound analysis over time. (**A**) Total peak area (mV) for all detected volatiles at different time points (24, 48, 72, 96, and 120 h). (**B**) Relative abundance (%) of individual compounds: ethanol (\(\bullet\)), acetic acid (\(\Circle\)), 1-butanol, 3-methyl (\(\blacktriangle\)), and phenylethyl alcohol (\(\triangle\)). The data points represent the relative abundance of each compound at the specified times. The absence of letters indicates no significant differences in the compounds in relation to time. Figure 5: Weekly capture of _Drosophila suzukii_ (%) in the period September–December 2022 in a cherry orchard in the La Araucania region, Chile. (\(\blacktriangle\)) Corresponds to the microencapsulated bait and (\(\Circle\)) corresponds to the control. Weekly captures (%) of \(D\). _suzukii_ in the Stella variety (**A**). Weekly captures (%) of \(D\). _suzukii_ in the Regina variety (**B**). Weekly captures (%) of \(D\). _suzukii_ in the Lapins variety (**C**). Black arrows indicate the dates of change of bait and control. * Indicates a significant difference between treatment and control according to the t-student test (\(p\leq 0.05\)). When analyzing the total SWD capture in relation to the varieties, it can be observed that Stella (\(p<0.001\)), Regina (\(p=0.008\)), and Lapins (\(p<0.001\)) had a significant effect on the attraction of the dipteran in relation to the control (Figure 6A). However, when analyzing the preference of SWD for any particular variety, no differences were found between them (\(p=0.6101\)). Regarding the sexual proportion of SWD, this was significant (\(p<0.001\)) because the capture of females in the WVM bait in the three cherry varieties reached 95.3% compared to the control (4.7%) (Figure 6B).