Chemical defense across three trophic levels: Catalpa bignonioides, the caterpillar Ceratomia catalpae, and its endoparasitoid Cotesia congregata.
Lampert EC, Dyer LA, Bowers MD. Chemical defense across three trophic levels: Catalpa bignonioides, the caterpillar Ceratomia catalpae, and its endoparasitoid Cotesia congregata. J Chem Ecol. 2011 Oct; 37(10):1063-70.