Abstract
Fusarium wilt disease (Fusarium oxysporum f. Sp. Cepae) is one of the critical and dominant diseases in shallots in South Sulawesi, which can reduce production by up to 60 percent. This study aims to determine the ability of the PGPR Bacillus spp. in protecting the onion plants from fusarium wilt (F. o. cepae) in the onion plants produced. The implementation method consists of; preparation of planting media, preparation of onion planting, supply and propagation of microbes (fungi F. o. cepae and PGPR bacteria Bacillus spp.), manufacture of PGPR bacteria Bacillus spp. formulations, and application of PGPR bacteria Bacillus spp. on planting. The study was conducted using a Completely Randomized Design (CRD) consisting of 5 treatments and three replications. Data were analyzed with ANOVA at the level of 5% and 1%. If it shows any treatment effect, then it is continued with BNJ test at 1% level. The results showed that treatment C showed the results of the emphasis on the intensity of the attack F. o. the best cepae with an average suppression of 83.44% compared to other treatments at the last observation.
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