Trunk & cordons

7 problems can affect the trunk & cordons of your grapevine. Filter by type, or open one to compare symptoms and treatments.

Black foot & Petri diseaseBlack foot & Petri disease
Fungal high

Black foot & Petri disease

Soilborne trunk-disease fungi that rot the base and wood of young vines, causing them to fail in the first years.

Botryosphaeria diebackBotryosphaeria diebackBotryosphaeria dieback
Fungal high

Botryosphaeria dieback

A trunk-disease complex that cankers cordons and kills spurs, closely mimicking Eutypa.

Crown gallCrown gallCrown gall
Bacterial moderate

Crown gall

Warty, tumour-like growths on the trunk near the soil line, often after winter injury.

Esca (trunk disease)Esca (trunk disease)Esca (trunk disease)Esca (trunk disease)
Fungal high

Esca (trunk disease)

A chronic wood rot of older vines, showing as "tiger-stripe" leaves and sudden collapse.

Eutypa diebackEutypa dieback
Fungal high

Eutypa dieback

A slow trunk disease ("dead arm") that stunts spring shoots and kills cordons one arm at a time.

Spotted lanternflySpotted lanternflySpotted lanternfly
Insect / pest high

Spotted lanternfly

An invasive planthopper that swarms vines, sucking sap and coating them in sticky honeydew and sooty mould.

Winter & frost injuryWinter & frost injury
Disorder high

Winter & frost injury

Cold damage that kills buds, splits bark, and kills trunks — a frequent look-alike for trunk disease.