Wehave tested various chemicals for their modifying effects on the behavior of the pine woodnematode. Several compounds containing the oleyl group, i.e., ethylene glycol monooleate, 1-monoolein, oleic acid and oleyl alcohol were attractive.¹⁾ Allyl isothiocyanate, naringenin, 1-tyrosine, 1-tryptophan and calcium chloride were also attractive, while capsaicin and magnesium chloride exhibited repellency.²⁾
As a continuation of these works, we tested behavioral responses of the nematode to terpenes. The results are presented in this paper.

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