The activity of Cinnamomum cassia essential oil (EO) and (E)-cinnamaldehyde was investigated on the phytoparasitic species Meloidogyne incognita, Globodera rostochiensis, and Xiphinema index. Juveniles (J2) or eggs of M. incognita and G. rostochiensis and mixed-age specimens of X. index were exposed to 12.5–100 µg mL⁻¹ concentrations of the two products. The suppressiveness of soil treatments with 100–800 mg kg⁻¹ soil rates of the C. cassia EO and (E)-cinnamaldehyde to M. incognita and G. rostochiensis was assessed on potted tomato and potato, respectively. A 24-h exposure to a 12.5 µg mL⁻¹ solution of (E)-cinnamaldehyde resulted in more than 68% mortality of M. incognita J2, while a poor mortality occurred at the same concentration of the whole EO. The mortality of G. rostochiensis J2 ranged 39 and 42%, respectively, since after a 4-h exposure to a 12.5 µg mL⁻¹ solution of both products. All the X. index specimens died after a 48- and 8-h exposure to a 100 µg mL⁻¹ solution of the EO and (E)-cinnamaldehyde, respectively. Egg hatch was reduced by more than 90% after exposing the M incognita egg masses or the G. rostochiensis cysts to 800 µg mL⁻¹ concentration of both EO and (E)-cinnamaldehyde for 24 and 96 h, respectively. The infestation of M. incognita and G. rostochiensis on tomato and potato, respectively, was significantly reduced by all soil treatments with both products, though (E)-cinnamaldehyde generally resulted more suppressive than the whole EO to both nematode species. According to these results, C. cassia EO and (E)-cinnamaldehyde could be suggested as a potential source of new environment-friendly nematicides.

研究了肉桂精油 (EO) 和(E)-肉桂醛对植物寄生物种南方根结线虫(Meloidogyne incognita) 、马球线虫 (Globodera rostochiensis ) 和剑线虫 (Xipinema index)的活性。幼体 (J2) 或M的卵。南方地区和G . rostochiensis和X的混合年龄标本。指数暴露于12.5–100 µg mL ^-1浓度的两种产品。分别在盆栽番茄和马铃薯上评估了土壤处理浓度为 100–800 mg kg ^-1的肉桂EO 和(E)-肉桂醛对南方根结线虫和马铃薯的抑制作用。暴露于12.5 µg mL ^-1 (E) -肉桂醛溶液24小时导致南方根结线虫J2的死亡率超过68%，而在相同浓度的全EO下死亡率较低。暴露于两种产品的 12.5 µg mL ^-1溶液 4 小时后， G. rostochiensis J2 的死亡率分别为 39% 和 42%。所有X.指数样本分别在100 µg mL ^-1 EO和(E)-肉桂醛溶液中暴露48小时和8小时后死亡。将南方根结线虫卵块或G. rostochiensis包囊分别暴露于800 µg mL ^-1浓度的EO和(E) -肉桂醛24和96小时后，卵孵化率减少90%以上。 M. incognita和G.的侵染。 使用这两种产品进行的所有土壤处理分别显着减少了番茄和马铃薯上的 rostochiensis，尽管(E)-肉桂醛通常比整个 EO 对两种线虫物种具有更强的抑制作用。根据这些结果，肉桂EO和(E) -肉桂醛可作为新型环境友好型杀线虫剂的潜在来源。