Fig 3 shows the results of tests on the antifungal activity of E. adenophorum oil extracts on ginger rhizome samples inoculated with P. myriotylum and incubated at 28 ± 1°C. The percentage of detached ginger rhizomes showing disease symptoms as a result of infection with P. myriotylum was reduced after first being treated with oil extracts from E. adenophorum at various concentrations The percentage of infected ginger was reduced significantly (P<0.05) compared with the control groups in samples that were treated with 160 and 200 μg/ml of oil extracts before being exposed to the pathogen. Ginger samples that were not treated with E. adenophorum oil extracts became completely infected with P. myriotylum. Fig 4 shows the results 4 days after inoculation with P. myriotylum. Decayed ginger (left) that was inoculated with the pathogen P. myriotylum (control), and healthy ginger (right) that had oil extracts (200 μg/ml concentration) applied before the pathogen was inoculated.