Nematicidal Activity of Akylamine against the Pine Wood Nematode, Bursaphelenchus lignicolus

In random screening of nematicidal compounds against the pine wood nematode Bursaphelenchus lignicolus using the so-called immersion test, a series of mono- and di-functional alkanes, aromatics and other miscellaneous compounds (total 105) were tested. Among these, the n-alkylamines were identified as the most potentially-active nematicidal compound. Relationship between nematicidal activity and the carbon-chain length of amines, mono-basic acids and alcohols was observed. Among those tested, n-octadecylamine showed the highest activity (LC50; 8.61 × 10-6M, 2.08 ppm) on a molar basis.