Table 3 Pearson correlation test results of VOC emission (LOG-transformed) of pollen beetle larvae, parasitoid offspring and parasitized larvae of pollen beetle (count of unique individuals despite of single- or multi-infestation).
Positive correlation | Negative correlation | ||
|---|---|---|---|
Oilseed rape (n = 79) VOC with pollen beetle larvae | |||
6-Methyl-5-hepten-2-one | r = 0.236, p = 0.036 | Acetaldehyde | r = − 0.248, p = 0.028 |
Decanal | r = − 0.268, p = 0.017 | ||
Toluene | r = − 0.263, p = 0.019 | ||
Oilseed rape (n = 19) VOC with pollen beetle parasitoid offsprings | |||
(Z)-3-Hexen-1-ol | r = 0.720, p = 0.001 | 2-Propenenitrile | r = − 0.638, p = 0.003 |
\(\alpha\)-Pinene | r = 0.531, p = 0.019 | Acetone | r = − 0.649, p = 0.003 |
Benzothiazole | r = 0.628, p = 0.004 | Acetophenone | r = − 0.613, p = 0.005 |
Limonene | r = 0.501, p = 0.029 | Isocyanatocyclohexane | r = − 0.727, p < 0.001 |
Heptanal | r = 0.480, p = 0.038 | Hexane | r = − 0.675, p = 0.002 |
Octanal | r = 0.528, p = 0.020 | Methanethiol | r = − 0.615, p = 0.005 |
3-Carene | r = 0.539, p = 0.017 | ||
Oilseed rape (n = 19) VOC with parasitized larvae of pollen beetle | |||
(Z)-3-Hexen-1-ol | r = 0.542, p = 0.017 | Isocyanatocyclohexane | r = − 0.524, p = 0.021 |
\(\alpha\)-Pinene | r = 0.466, p = 0.044 | Hexane | r = − 0.514, p = 0.025 |
Benzothiazole | r = 0.536, p = 0.018 | ||
Octanal | r = 0.480, p = 0.037 | ||
3-Carene | r = 0.486, p = 0.035 | ||
