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Shoots & canes

11 problems can affect the shoots & canes of your grapevine. Filter by type, or open one to compare symptoms and treatments.

All (11) Fungal (5) Insect / pest (2) Disorder (4)

Fungal moderate

Anthracnose

Sunken spots with dark margins on shoots and berries — the classic "bird's-eye rot".

Disorder moderate

Boron deficiency

Poor fruit set with "hen and chicks" clusters and dying shoot tips — common on dry, sandy soils.

Fungal high

Botryosphaeria dieback

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

Fungal high

Eutypa dieback

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

Insect / pest moderate

Grape mealybug

Soft, waxy sap-suckers that foul clusters with honeydew — and spread leafroll virus.

Disorder moderate

Herbicide drift

Distorted, cupped, fan-shaped new growth from weed-killer that drifted onto the vine — not a disease at all.

Disorder low

Nitrogen deficiency

Uniformly pale, small leaves and weak growth from too little nitrogen — the vine simply lacks vigour.

Fungal moderate

Phomopsis cane & leaf spot

Black specks and cracked bark on the base of shoots, plus small spots on lower leaves.

Fungal high

Powdery mildew

A dusty white-grey coating on leaves and berries — the most common grape fungus almost everywhere.

Insect / pest high

Spotted lanternfly

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

Disorder high

Winter & frost injury

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