@article{article8a459e7e,
title   = {Effect of ursolic acid from epicuticular waxes of jacaranda decurrens on schizaphis graminum},
author = {Varanda, E M and Zuniga, G E and Salatino, Antonio and Roque, N F and Corcuera, L J},
year = {1992},
journal   = {Journal of Natural Products}
}