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Scaphoideus titanus

Grapevine leafhopper

Description

The grapevine leafhopper (Scaphoideus titanus) is a small phloem-feeding insect accidentally introduced to Europe from North America. First found in France in 1958, it has since spread across most European wine regions. In its native range it is polyphagous, but in Europe it feeds exclusively on grapevines (Vitis spp.), mainly Vitis vinifera. Adults measure 5–6.5 mm, have a boat-shaped body and rust-brown coloration with pale spots. The species is univoltine, overwintering as eggs laid in bark crevices of older wood. Nymphs hatch in June, feed on the underside of leaves, and adults appear in July. Although the insect itself causes little direct harm, it is the primary vector of the phytoplasma Candidatus Phytoplasma vitis, responsible for Flavescence dorée. It spreads mainly through wind and infected planting material, posing a serious threat to European vineyards.

Symptom

On the underside of leaves there are small leafhoppers – adults as well as nymphs. Nymphs become active from the third instar and, when disturbed, they quickly jump away.

Tree Species: Grape

Part of a plant- attacked: Leaf / Needle, Branch

Pest significance: Very harmful

Pest Category: Insects

Invasive Species: Yes

Present in EU: Yes