High population densities of <i>Macrolophus pygmaeus</i> on tomato plants can cause economic fruit damage: interaction with <i>Pepino mosaic virus</i>?

M. pygmaeus can cause economic damage to tomato fruits at densities common in practice. An infection of the plants with PepMV enhances fruit symptoms significantly. Interacting plant defence responses are most likely the key to explaining this, although confirmation is required. © 2015 Society of Chemical Industry.