'Attract and reward': Combining a herbivore-induced plant volatile with floral resource supplementation - Multi-trophic level effects

► Arthropods from two trophic levels were affected by elements of 'attract and reward'. ► MeSA increased aphid parasitism rate. ► Different natural enemy species were attracted to either buckwheat (Fagopyrum esculentum) or methyl salicylate (MeSA). ► Fourth trophic level arthropod species may be attracted to buckwheat. ► Both MeSA and buckwheat may repel certain species from the third and fourth trophic level.