Anti-pinewood nematode compound containing cinnamaldehyde extracted from Cinnamomum cassia and its structurally-similar compounds.

摘要

An anti-pinewood nematode composition comprising cinnamaldehyde is provided to show strong nematicidal effect against pine tree nematode by treating the composition mainly comprising the cinnamaldehyde and its' structurally similar compounds of methyl-trans-cinnamaldehyde and 2-methoxy-cinnamaldehyde, thereby significantly decreasing the individuals of the pine tree nematode. The anti-pinewood nematode composition comprises cinnamaldehyde extracted from Cinnamomum cassia, which is prepared by pulverizing Cinnamomum cassia, adding 5 times weight of 70% hydrogenated alcohol regarding the pulverized Cinnamomum cassia thereto and extracting it at a temperature of 4-40 deg.C for 12 hours. In the composition, the concentration of the cinnamaldehyde is 0.1-50 vol.%.