## 2 Results
### Electroantenography Analyses  
Two-way ANOVAs testing the effect of compound, and concentration on the EAG responses of _F. occidentalis_ are shown in Table 2. The EAG responses of _F. occidentalis_ were significantly affected by compound (\(F=221.11\), \(p<0.001\)), concentration (\(F=16.56\), \(p<0.001\)), and their interactions (\(F=33.41\), \(p<0.001\)). \begin{table}
\begin{tabular}{c c c c c} \hline
**Number** & **Compound** & **Molecular Formula** & **Molecular Weight** & **Content (\%)** \\ \hline
1 & 3-Hexenal & C\({}_{6}\)H\({}_{10}\)O & 98 & 0.61 \\
2 & 3-Hexen-1-ol, (E)- & C\({}_{6}\)H\({}_{12}\)O & 100 & 2.15 \\
3 & 2-Hexenal, (E)- & C\({}_{6}\)H\({}_{10}\)O & 98 & 0.79 \\
4 & 1-Hexanol & C\({}_{6}\)H\({}_{14}\)O & 102 & 0.09 \\
5 & Nonane & C\({}_{9}\)H\({}_{20}\) & 128 & 0.31 \\
6 & 2,4-Hexadienal, (E,E)- & C\({}_{6}\)H\({}_{3}\)O & 96 & 0.05 \\
7 & \(\alpha\)-[PERSON] & C\({}_{10}\)H\({}_{16}\) & 136 & 0.04 \\
8 & \(\alpha\)-Pinene & C\({}_{10}\)H\({}_{16}\) & 136 & 0.29 \\
9 & Camphene & C\({}_{10}\)H\({}_{16}\) & 136 & 0.05 \\
10 & 4-Oxohex-2-enal & C\({}_{6}\)H\({}_{8}\)O\({}_{2}\) & 112 & 0.08 \\
11 & Sabinene & C\({}_{10}\)H\({}_{16}\) & 136 & 1.57 \\
12 & \(\beta\)-Pinene & C\({}_{10}\)H\({}_{16}\) & 136 & 0.41 \\
13 & \(\beta\)-Myrcene & C\({}_{10}\)H\({}_{16}\) & 136 & 5.12 \\
14 & Octanal & C\({}_{8}\)H\({}_{16}\)O & 128 & 0.06 \\
15 & \(\alpha\)-Terpinene & C\({}_{10}\)H\({}_{16}\) & 136 & 0.07 \\
16 & Limonene & C\({}_{10}\)H\({}_{16}\) & 136 & 0.11 \\
17 & (Z)-\(\beta\)-Ocimene & C\({}_{10}\)H\({}_{16}\) & 136 & 0.06 \\
18 & (E)-\(\beta\)-Ocimene & C\({}_{10}\)H\({}_{16}\) & 136 & 1.69 \\
19 & \(\gamma\)-Terpinene & C\({}_{10}\)H\({}_{16}\) & 136 & 0.11 \\
20 & Undecane & C\({}_{11}\)H\({}_{24}\) & 156 & 0.06 \\
21 & Nonanal & C\({}_{9}\)H\({}_{18}\)O & 142 & 3.50 \\
22 & 1-Nonanol & C\({}_{9}\)H\({}_{20}\)O & 144 & 1.32 \\
23 & Decanal & C\({}_{10}\)H\({}_{20}\)O & 156 & 47.21 \\
24 & 1-Decanol & C\({}_{10}\)H\({}_{22}\)O & 158 & 11.02 \\
25 & l-Bornyl acetate & C\({}_{12}\)H\({}_{20}\)O\({}_{2}\) & 196 & 0.12 \\
26 & 2-Undecanone & C\({}_{11}\)H\({}_{22}\)O & 170 & 1.65 \\
27 & Undecanal & C\({}_{11}\)H\({}_{22}\)O & 170 & 3.48 \\
28 & n-Decanoic acid & C\({}_{10}\)H\({}_{20}\)O\({}_{2}\) & 172 & 0.12 \\
29 & Geranyl acetate & C\({}_{12}\)H\({}_{20}\)O\({}_{2}\) & 196 & 0.78 \\
30 & Dodecanal & C\({}_{12}\)H\({}_{24}\)O & 184 & 7.13 \\
31 & Decanoyl acetaldehyde & C\({}_{12}\)H\({}_{22}\)O\({}_{2}\) & 198 & 3.76 \\
32 & (\(E\))-Caryophyllene & C\({}_{15}\)H\({}_{24}\) & 204 & 0.86 \\
33 & \(\alpha\)-Humulene & C\({}_{15}\)H\({}_{24}\) & 204 & 0.08 \\
34 & (\(E\))-\(\beta\)-Farnesene & C\({}_{15}\)H\({}_{24}\) & 204 & 0.67 \\
35 & Bicyclogermacrene & C\({}_{15}\)H\({}_{24}\) & 204 & 0.49 \\
36 & (\(E\), \(E\))-\(\alpha\)-Farnesene & C\({}_{15}\)H\({}_{24}\) & 204 & 0.15 \\
37 & Tetradecanal & C\({}_{14}\)H\({}_{28}\)O & 212 & 0.47 \\
38 & Hexadecanal & C\({}_{16}\)H\({}_{32}\)O & 240 & 0.07 \\ \hline \end{tabular}
\end{table} 
Table 2: Two-way ANOVAs testing for the effects of compound and concentrations on the electron-tennography responses of _Frankliniella occidentalis_. \begin{table}
\begin{tabular}{c c c c c} \hline
**Parameter** & **Source** & \(\boldsymbol{df}\) & **MS** & \(\boldsymbol{F}\) & \(\boldsymbol{p}\) \\ \hline \multirow{3}{*}{Relative EAG value (mv)} & Compound & 4 & 0.613 & 221.11 & \(<\)0.001 \\  & Concentration & 4 & 0.046 & 16.56 & \(<\)0.001 \\  & Compound \(\times\) Concentration & 16 & 0.093 & 33.41 & \(<\)0.001 \\  & Error & 80 & 0.003 & & \\ \hline \end{tabular}
\end{table} 
Table 1: Volatile components of _Houttuynia cordata_ leaves. Further, one-way ANOVA showed different responses of thrips to the five compounds at the 0.01 ug (\(F_{4,20}\) = 28.89, \(p\) < 0.001), 0.1 ug (\(F_{4,20}\) = 90.48, \(p\) < 0.001), 1 ug (\(F_{4,20}\) = 492.26, \(p\) < 0.001), 10 ug (\(F_{4,20}\) = 242.33, \(p\) < 0.001), and 100 ug (\(F_{4,20}\) = 48.84, \(p\) < 0.001) doses (Figure 2).