Rose galls

Rose leafhopper creates pale blotches and fine white mottling on the upper leaf surfaces in Western Washington, with evidence of white nymphs and adults visible on the undersides. The creamy-white to light yellow insects are about 3mm long; when disturbed, they readily jump and fly. Cast skins accumulate on leaf undersides.

Damage is mainly aesthetic; severe infestations in dry summers can cause leaf drop. Fall egg-laying wounds canes, creating fungal entry points. Monitor for mottling in mid-summer and tolerate minor damage. For severe cases, strong water spray dislodges adults without chemicals needed.