Shyobunone and isoshyobunone have insecticidal and repellant activity, they exhibit strong contact toxicity against Lasioderma serricorne (LS adults with LD50 values of 20.24 and 24.19 ug/adult, respectively; they are strongly repellent against Tribolium
Oxychelerythrine shows high modulatory activity enhancing the susceptibility of the S. aureus ATCC 6538 to all the tested antibiotics from two to four-fold. It also shows antifeeding activities against Tribolium castaneum adults, with the EC50 of 192.32 p