HUBEI AGRICULTURAL SCIENCES ›› 2023, Vol. 62 ›› Issue (9): 74-77.doi: 10.14088/j.cnki.issn0439-8114.2023.09.013

• Plant Protection • Previous Articles     Next Articles

Inhibitory effects of cinnamon essential oil and turmeric oil against four plant pathogens

GAO Fu-tao, SUN Shu-jun, YOU Xiu-feng, DOU Tao, CAI Yu-biao, ZHOU Lin, LIU Xiang-yang   

  1. College of Plant Protection, Henan Agricultural University/Key Lab for Creation and Application of Novel Pesticides of Henan Province, Zhengzhou 450002, China
  • Received:2022-06-06 Online:2023-09-25 Published:2023-10-24

Abstract: To study the inhibitory effects of cinnamon oil and turmeric oil on Phytophthora vignae, Rhizoctonia cerealis, Magnaporthe oryzae and Fusarium oxysporum f.sp. cucumerinum, the antifungal activities of cinnamon essential oil and turmeric oil were determined by the mycelial growth rate method, and the median effective concentrations (EC50) of the corresponding two essential oils against each pathogen were calculated. The results showed that cinnamon essential oil and turmeric oil had different inhibitory effects on four plant pathogenic fungi, among which the EC50 of cinnamon essential oil on Phytophthora vignae, Rhizoctonia cerealis, Magnaporthe oryzae and Fusarium oxysporum f.sp. cucumerinum were 215.03, 204.90, 199.57, 140.20 μg/mL, respectively. For turmeric oil, the EC50 on Phytophthora vignae, Rhizoctonia cerealis, Magnaporthe oryzae and Fusarium oxysporum f.sp. cucumerinum were 1 456.14, 358.07, 366.68, 514.88 μg/mL, respectively. Cinnamon essential oil showed higher antifungal activity.

Key words: botanical fungicide, cinnamon essential oil, turmeric oil, plant pathogens, inhibitory effects

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