Larva of the Sawfly Strongylogaster multifasciata (image) Max Planck Institute for Chemical Ecology Share Print E-Mail Caption The larva of the sawfly Strongylogaster multifasciata feeds on a bracken leaf. Like other plants, ferns produce toxic substances and can successfully defend themselves against herbivores. Unlike flowering plants, however, bracken ferns do not emit volatiles that attract parasitoids or predators of herbivorous larvae. Credit MPI Chem. Ecol./Venkatesan Radhika Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.