Salim Widono is a lecturer of Plant Pathology at Faculty of Agriculture, Universitas sebelas Maret in Surakarta (Indonesia)since 1994. He do research actively on plant pathology especially on biological control of plant diseases caused by fungi such as banana wilt caused by Fusarium oxysporum f.sp. cubence and basal rot of garlic caused by Fuasrium oxysporum f.sp. cepae. some antagonistic bacteria such fluorescence pseudomonas, baccillus have been studied intensively by him.