According to the test of inhibiting the growth of Clavbacter michiganensis subsp. michiganensis, 9 strains have antagonistic activity against the plant pathogen, occupied 4.84% of isolated bacteria.

用抑菌圈法测定，共得到9株对番茄溃疡病菌有拮抗作用的内生细菌，占分离内生细菌总菌数的4.84%。

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Specifically they discovered that Pythium ultimum, a fungus that attacks aubergines, peppers, lettuces, tomatoes and cucumbers as seedlings, Clavibacter michiganensis, a bacterium that kills young plants and deforms fruits, and Streptomyces scabies, a second bacterium, which causes potatoes to develop revolting scabs and for which no treatment currently exists, all stopped growing in the presence of the oil.

ECONOMIST: Tobacco extracts protect plants from pests and pathogens