The antagonistic potential of Bacillus spp. against Ralstonia solanacearum causing bacterial wilt disease in ginger (Zingiber officinale)

Abstract Bacterial wilt caused by Ralstonia solanacearum is an important disease in ginger which can cause yield losses of more than 90%. One way to control the biological using microorganism, Bacillus. Bacillus spp. recognized have ability pests and diverse phytopathogens through induction systemic resistance plants. This study aimed obtain that prevent bacterial . was carried out at Microbiology Laboratory Greenhouse, Faculty Agriculture, Universitas Andalas, from July October 2022. The experiment introduced 5 ( cereus Se07, P14, sp. SJI, HI, subtilis) control, inoculated with one month old. parameters will be observed were incubation period, incidence, severity. results show treatment B. P14 best suppress severity 37.03% effectiveness 47.38%.