Aphids show interspecific and intraspecific variation in life history responses to host plant infection by the fungal pathogen <i>Botrytis cinerea</i>

The life histories of insect herbivores are affected by variation in host plant quality, with poor quality typically being associated reduced herbivore fecundity, size and longevity. Plant pathogens ubiquitous nature can alter as experienced herbivores. We asked how infection the widespread economically important fungal pathogen Botrytis cinerea history traits two aphid species. found that black bean Aphis fabae were negatively reared on infected plants, showing population growth rate, size, off-plant survival time development rate. In contrast, we pea aphids Acyrthosiphon pisum benefitted from degree benefit varied between clonal lines. This work suggests ecological economic consequences dynamics pests could be difficult to predict.