Repellent and Feeding Deterrent Activities of Butanolides and Lignans Isolated from Cinnamomum camphora against Tribolium castaneum

Figure 2

Percentage repellency (PR) of EO and PE from the C. camphora stem bark against T. castaneum at 2 and 4 h after exposure. Differences between PR values of EO and PE at the same concentration were determined by t-test () (EO: essential oil; PE: petroleum ether/EtOAc extract).