Thyme oil to control Alternaria alternata in vitro and in vivo as fumigant and contact treatments
2011
Feng, Wu | Chen, Jiaping | Zheng, Xiaodong | Liu, Qing
This study was conducted to evaluate the efficacy of thyme oil in suppressing Alternaria alternata (Fr.:Fr.) Keissl in vitro and in vivo as fumigant and contact treatments. Thyme oil possessed great fumigant and contact toxicity against A. alternata at different concentrations in vitro. Irreversible inhibition of fungal growth could be caused by exposure to 500Â μL/L thyme oil as a fumigant for 6 and 12 days. The spores of A. alternata were completely suppressed 6Â h after incubation in potato dextrose broth (PDB) by 2000Â μL/L of thyme oil. The thyme oil as a fumigant at 66.7Â μL/L showed a significant inhibition effect on A. alternata of cherry tomatoes stored at 25Â °C for 5 days. Thyme oil at 500Â μL/L showed a significant contact inhibition effect on A. alternata of cherry tomatoes stored at 25Â °C for 3 days.
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