A monoterpenoid; active against E. coli, P. aeruginosa, S. typhimurium, S. aureus, R. leguminosarum, and B. subtilis in agar diffusion assays; enhances the antibacterial activity of nitrofurantoin against several nitrofurantoin-resistant species of Enterobacteriaceae, including C. freundii, E. coli, and S. marcescens, by 3- to 20-fold; exhibits feeding deterrent and repellent activities against ants; insecticidal against C. maculatus eggs, larvae, and adults