Dihydroaeruginoic acid, an antibiotic sourced originally from P. fluorescens, exhibits antimicrobial efficacy in disc assays against diverse pathogens, including R. solani, P. ultimum, B. cinerea, S. rolfsii, C. gloeosporioides, F. oxysporum, and S. tritici fungi, along with B. subtilis, E. herbicola, and S. albus bacteria, at a concentration of 200 μg/disc.