Fuente: WIPO "tomato" A Tralopyril derivative and use thereof are provided. The Tralopyril derivative may be used to control plant-parasitic nematodes, such as root-knot nematodes and cyst nematodes. The biological assay results show that, using the foliar spray method at a dosage only one twentieth of that used in the root-irrigation method, Tralopyril-β-aminobutyric acid exhibits higher potted-plant activity against root-knot nematodes in tomato, cowpea, and cucumber than cyclobutrifluram applied at the same concentration via the root-irrigation method. Tralopyril-β-aminobutyric acid also exhibits excellent control efficacy against tobacco root-knot nematodes when applied by both foliar spray and root-irrigation methods. Tralopyril-β-aminobutyric acid also exhibits certain control efficacy against cyst nematodes in soybean.