Hop-cultivation
Guides
Phorodon humuli
hop aphid, damson-hop aphid
Phorodon humuli is an aphid species and the primary pest of cultivated hops (Humulus lupulus). It exhibits a heteroecious life cycle, alternating between Prunus species as winter primary hosts and hop plants as summer secondary hosts. The species causes direct damage through phloem feeding and can reduce hop yields substantially. Populations show cultivar-specific susceptibility patterns and have developed insecticide resistance in agricultural settings.