Efficacy of essential oils from plants in controlling leaf spot disease of cabbage seedlings
2005
Anongnat Taechuesai(Chiang Mai University, Chiang Mai (Thailand). Faculty of Agriculture. Dept. of Plant Pathology) | Sombat Srichuwong(Chiang Mai University, Chiang Mai (Thailand). Faculty of Agriculture. Dept. of Plant Pathology)
Cabbage seeds cv. No.1, New Jersey and Ruby Perfection were investigated for Alternaria brassicicola, which causes leaf spot disease, using the Blotter method. Alternaria brassicicola was found in cv. New Jersey more than in the others, viz. in 15.50 percent. Efficacy test of essential oils extracted from 11 species of plants, in growth inhibition of A. brassicicola mycelia was carried out on PDA mixed with the essential oils. It was found that the oils from Cymbopogon narus, Litsea cubeba, Mentha piperita and Cinnamomum camphora at 1,000-2,000 ppm gave 100 percent inhibition. The essential oils from C. narus and L. cubeba gave similar results in reducing seed infection and increase percentages of seed germination, seedling emergence, normal seedling development, shoot length, fresh and dry weight.
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Эту запись предоставил Kasetsart University